Here it is:

400 2-bolt w/ studs .040 over
SpeedPro h616p flat tops with 4vr(approx 11:1 w64cc)
stock 400 crank magged & polished
Scat 4340 I-beam w/cap screws


462 Camels w 2.02 & 1.60 64 cc ported(no flow #s)
Edlebrock Torker II single plane med rise
Crane Energizer 284*adv/228* @ 050 .480 lift 112*lsa
Crane roller rockers
Holley 750 VS
1 5/8 headers to 2 1/2" with Flowmaster 40's out back, no crossover tube

you probably don't need this info but if anyone has any comments on the total package I would appreciate it

ST-10 4speed
10 Bolt w/ 3.90 & Auburn posi
27" Yokohama tires

The head and cam combo I have is what I have to work with already. My budget for this season is into the short new block. Was hoping to get around 450hp at the flywheel out of the combo listed about but I think the heads will be the limiting factor here. I know the compression with the 64 cc heads is a little high for the street and will need to run an additive or a mix of racing fuel and 93 octane this year. Thinking of next year purchasing some Pro TopLine 72cc heads and a new cam package. Any suggestions would be appreciated. This is a weekend only ride with a few planned trips sown the strip. Thx in advance for you help and sorry for the long post! If I missed any informed for the dyno let me know and I should be able to provide it.

Tom

With a SWAG on the heads:

RPM-----------1500----2000----2500----3000----3500----4000----4500----5000----5500----6000
Brake_Tq------192-----280-----348-----411-----447-----477-----468-----433-----359-----287
Brake_HP------54.9----107-----166-----235-----298-----363-----401-----413-----376-----328
Exh_Pres------0.0-----.1------.2------.3------.5------.7------.9------1.0-----1.1-----1.1
Int_Vacuum----.1------.3------.6------.6------.6------.6------.8------1.0-----1.1-----1.1
Vol_Eff_%-----54.1----63.4----73.4----81.9----88.9----95.5----97.4----96.0----90.0----84.0
Actual_CFM----103-----162-----234-----313-----396-----486-----558-----611-----630-----642
Fuel_Flow-----37.7----59.0----85.3----114-----145-----178-----204-----223-----230-----235
A/F_Mix_Qal---73.9----90.6----93.2----100.0---100.0---100.0---100.0---100.0---100.0---100.0
BSFC----------.687----.554----.515----.486----.485----.490----.508----.541----.612----.715
BSAC----------8.623---6.945---6.462---6.101---6.088---6.143---6.374---6.791---7.675---8.974
Friction_HP---15------24------35------49------65------88------116-----150-----190-----235
Mach_#--------.144----.192----.240----.288----.336----.384----.432----.479----.527----.575
Piston_Spd----938-----1250----1563----1875----2188----2500----2813----3125----3438----3750
Piston_Gs-----159-----283-----442-----637-----867-----1133----1433----1770----2141----2548
Overlap_%VE----2.7-----2.4-----.9------.7------.6-----1.8-----2.0-----1.6-----.3-------.4
Int_AvgVel----103-----138-----172-----207-----241-----275-----310-----344-----379-----413
In_InertiaPrs-.0------.2------.6------1.3-----2.0-----2.5-----2.8-----2.7-----2.5-----2.1
In_ResTunPrs--0.0-----0.0-----.0------.0------.0------0.0-----0.0-----0.0-----0.0-----0.0
Ex_AvgVel-----116-----154-----193-----232-----270-----309-----347-----386-----425-----463
ExTun_Prs-----.8------1.0------.2------.4------.5------1.3-----1.8-----1.9-----1.6-----1.2
Lifter_Pump_UpNone----None----None----None----None----None----None----None----None----None
Spark_Adv-----32------33------32------29------29------29------31------32------34------36

Thx onovakind67!

Some other pertinent info I maybe should have included:

The block is zero decked
rods are 5.7"
.039 compressed gasket thickness

Looks like the hp starts falling off at 5000.....due to heads??? or cam??? or maybe conbo of both? Was thinking of 6000-6200 max shift point when running at the strip. Due to budget I was again leaning towards the next step up in the Energizer series......302*adv/246* @ 050 .500 lift, 106lsa. Was alos hoping for a good racy sounds idle which this cam should provide. Would you mind running the dyno again with this cam. thx!

Tom

the heads/cam are definately holding you back, but i would say leave the cam untill you upgrade the heads. i personally would look into different manifolds as well, the torker is kinda old school, imo. but, it will still be lots of fun to drive, untill you step up to better heads. 400's like good breathing heads, and naturally make lots o torque. also, my guess is w/ a zero deck, .039 gasket, flat tops, and 64cc chambers, your compression is closer to 11.5:1, my 406 is set up similarly to that, compression wise. good luck graemlins/thumbsup.gif

To quote John Lingenfelter:
A strong cylinder head will always make more power, even if poorly matched with the cam. A weak cylinder head matched with an optimized cam will never perform as well.

You lose a lot with too much cam coupled with too small a head. Here's the same engine as above with the 246° cam with a 102° ICL:

RPM-----------1500----2000----2500----3000----3500----4000----4500----5000----5500----6000
Brake_Tq------109-----195-----294-----376-----424-----456-----459-----434-----380-----313
Brake_HP------31.2----74.1----140-----215-----282-----347-----394-----413-----398-----358
Exh_Pres------0.0-----.1------.2------.4------.7------1.1-----1.4-----1.7-----1.9-----2.0
Int_Vacuum----.1------.2------.5------.6------.6------.6------.8------1.0-----1.1-----1.1
Vol_Eff_%-----39.6----50.7----64.2----75.9----84.4----91.5----94.5----94.2----90.6----85.1
Actual_CFM----75.6----129-----204-----290-----376-----466-----542-----600-----634-----650
Fuel_Flow-----27.6----47.2----74.6----106-----137-----170-----198-----219-----232-----238
A/F_Mix_Qal---72.5----90.4----95.8----100.0---100.0---100.0---100.0---100.0---100.0---100.0
BSFC----------.886----.637----.534----.493----.487----.490----.503----.530----.582----.664
BSAC----------11.109--7.990---6.696---6.180---6.103---6.144---6.308---6.652---7.301---8.331
Friction_HP---12------21------30------43------57------77------103-----134-----171-----213
Mach_#--------.138----.184----.231----.277----.323----.369----.415----.461----.507----.553
Piston_Spd----938-----1250----1563----1875----2188----2500----2813----3125----3438----3750
Piston_Gs-----159-----283-----442-----637-----867-----1133----1433----1770----2141----2548
Overlap_%VE----5.9-----7.0-----2.9-----1.9-----2.8-----1.6-----.7------1.2-----1.8-----2.2
Int_AvgVel----103-----138-----172-----207-----241-----275-----310-----344-----379-----413
In_InertiaPrs-.0------0.0-----.4------1.3-----2.0-----2.6-----2.9-----2.9-----2.7-----2.4
In_ResTunPrs--0.0-----0.0-----0.0-----.0------.0------.0------0.0-----0.0-----0.0-----0.0
Ex_AvgVel-----116-----154-----193-----232-----270-----309-----347-----386-----425-----463
ExTun_Prs-----.4------1.0------.2------.5------.4------1.1-----1.7-----1.9-----1.7-----1.3
Lifter_Pump_UpNone----None----None----None----None----None----None----None----None----None
Spark_Adv-----35------36------34------30------29------28------31------33------34------36

This is the price some guys pay for that 'racy' idle.

Take your engine with the 228° cam, add Pro 200cc heads, a set of 1-7/8" x 40" headers, 20" merge collector, crossover, a 900 cfm carb, Vicjr manifold, 1.6 rockers, a windage tray, electric fan, and you get the following:

RPM-----------2000----2500----3000----3500----4000----4500----5000----5500----6000----6500
Brake_Tq------224-----349-----415-----465-----505-----524-----521-----501-----465-----410
Brake_HP------85.2----166-----237-----310-----385-----449-----496-----525-----532-----507
Exh_Pres------0.0-----0.0-----.1------.1------.2------.2------.3------.4------.4------.5
Int_Vacuum----0.0-----.1------.2------.3------.5------.7------.8------1.0-----1.2-----1.3
Vol_Eff_%-----60.7----74.2----81.5----89.4----96.8----101.7---103.6---103.3---101.1---97.8
Actual_CFM----154-----237-----311-----399-----495-----585-----662-----725-----773-----810
Fuel_Flow-----56.4----86.7----114-----146-----181-----214-----242-----265-----282-----296
A/F_Mix_Qal---71.5----90.3----97.0----99.4----100.0---100.0---100.0---100.0---100.0---100.0
BSFC----------.662----.522----.480----.470----.470----.476----.488----.505----.531----.583
BSAC----------8.304---6.546---6.024---5.898---5.893---5.973---6.125---6.337---6.664---7.312
Friction_HP---18------27------37------50------66------86------109-----135-----167-----218
Mach_#--------.160----.200----.240----.281----.321----.361----.401----.441----.481----.521
Piston_Spd----1250----1563----1875----2188----2500----2813----3125----3438----3750----4063
Piston_Gs-----283-----442-----637-----867-----1133----1433----1770----2141----2548----2991
Overlap_%VE----1.3----2.9-----2.0-----2.1-----3.0-----3.4-----3.2-----2.8-----2.3-----1.8
Int_AvgVel----121-----151-----181-----211-----241-----272-----302-----332-----362-----392
In_InertiaPrs-.1------.5------1.1-----2.0-----2.8-----3.4-----3.6-----3.5-----3.3-----2.9
In_ResTunPrs--0.0-----0.0-----0.0-----0.0-----0.0-----0.0-----0.0-----0.0-----0.0-----0.0
Ex_AvgVel-----118-----148-----177-----207-----236-----266-----295-----325-----354-----384
ExTun_Prs-----.2-------.4------.3------.5------1.3-----2.3-----2.6-----2.4-----2.1-----1.7
Lifter_Pump_UpNone----None----None----None----None----None----None----None----None----None
Spark_Adv-----32------32------31------31------31------32------32------33------34------35

Changing the cam to the 246° Crane with the new setup nets:

RPM-----------2000----2500----3000----3500----4000----4500----5000----5500----6000----6500
Brake_Tq------142-----307-----404-----468-----522-----541-----540-----519-----481-----423
Brake_HP------54.2----146-----231-----312-----397-----464-----514-----543-----549-----523
Exh_Pres------0.0-----0.0-----.1------.1------.2------.3------.3------.4------.4------.5
Int_Vacuum----0.0-----.1------.2------.3------.5------.7------.9------1.1-----1.2-----1.3
Vol_Eff_%-----48.8----68.5----79.9----89.8----98.9----103.8---105.9---105.2---102.7---99.0
Actual_CFM----124-----224-----311-----402-----509-----605-----684-----744-----790-----823
Fuel_Flow-----45.4----81.9----114-----147-----186-----221-----250-----272-----289-----301
A/F_Mix_Qal---66.4----89.9----97.0----99.4----100.0---100.0---100.0---100.0---100.0---100.0
BSFC----------.837----.560----.492----.470----.468----.476----.486----.501----.525----.575
BSAC----------10.493--7.023---6.172---5.900---5.875---5.975---6.096---6.281---6.587---7.213
Friction_HP---18------27------37------50------66------85------108-----134-----165-----216
Mach_#--------.157----.197----.236----.275----.315----.354----.393----.433----.472----.512
Piston_Spd----1250----1563----1875----2188----2500----2813----3125----3438----3750----4063
Piston_Gs-----283-----442-----637-----867-----1133----1433----1770----2141----2548----2991
Overlap_%VE----2.0----5.4-----5.2-----3.0-----4.8-----5.3-----5.2-----4.8-----4.0-----3.1
Int_AvgVel----121-----151-----181-----211-----241-----272-----302-----332-----362-----392
In_InertiaPrs-0.0-----.2------.9------2.0-----2.8-----3.3-----3.6-----3.5-----3.2-----2.8
In_ResTunPrs--0.0-----0.0-----0.0-----0.0-----0.0-----0.0-----0.0-----0.0-----0.0-----0.0
Ex_AvgVel-----118-----148-----177-----207-----236-----266-----295-----325-----354-----384
ExTun_Prs-----0.0------.6------.7------.4------1.2-----2.2-----2.6-----2.5-----2.1-----1.7
Lifter_Pump_UpNone----None----None----None----None----None----None----None----None----None
Spark_Adv-----35------33------32------31------31------31------32------33------34------35

The average power remains about the same since the top end gains are offset by low end losses.

Thx alot everone!! I was blown away by the HP difference in going to the Pro TopLine 200cc heads!!!! :D Of course after sseing those numbers I am bummed with having to wait to get a set.

Would changing to the Crane Energizer 286 do me any better with my current heads? The specs on this cam are 286*adv/230* @ 050 .465 lift 106LSA. I was thikning maybe a little more duration, a little less lift and I keep reading that these long stroke small blocks like the LSA to be around 106-108*. Perhaps there would be a better solid lifter cam at a reasonable price that I should consider? Or maybe just leave well enough alone and wait until I get the Pro TopLines? Not sure which way to go? :confused:

Originally posted by bowtie1Z28:
Thx alot everone!! I was blown away by the HP difference in going to the Pro TopLine 200cc heads!!!! :D It's not just the heads, it's the whole package, the intake, carb, exhaust, etc. That's why I listed them.
I wouldn't waste any money on the motor until you can do it right.