I have been told that dollar for dollar Trick Flow 23* heads are the way to go. A friend of mine insist that the Dart Pro 1 heads are better all around. I plan to spray 200 hp NOS, so the exhaust side is important.

here's my set-up:

355
10.7 comp
Victor Jr.
700 dbl pump
comp 292h 534 lift, 244@.050 106lsa, 73* overlap.1.6 comp roller rockers
M20
3:73 12 bolt w/locker strange axls TA cover

hope this is enough info, I'm willing to spend the extra $ on the Darts if it's going to be worth it........THANKS

trick flow 195cc flow a couple points higher at .500" lift on the exhaust then the Dart Pro 1 200cc.

DD2k says with your combo and standard trick flow 195cc heads:
499HP at 6500rpms
457TQ at 5000rpms/ 376TQ at 3000rpms(note that 3000rpms, not 2000, it would be almost irrelevant to show 2000rpms if this is a drag racing engine, you must tell us what you plan on using this for, street? bracket?
the weight of the car its going in? stuff like this all helps.

Dart 200cc Pro 1's dyno:
499HP at 6500rpms
453TQ at 5000rpms/ 367TQ at 3000rpms

Dart 215cc Pro 1's dyno:
494HP at 6500rpms
450TQ at 5000rpms/ 367TQ at 3000rpms (DONT USE THESE! this is proof that bigger ports are not always better)

Trick flow 195cc with CNC chambers:
498HP at 6500rpms
457TQ at 5000rpms/ 380TQ at 3000rpms

Trick Flow Big port 2.08/1.60:
518HP at 6500rpms
465TQ at 5000rpms/ 377TQ at 3000rpms (these cost about $1250, but from the looks of it i think they'd be worth it)

AFR 195's:
515HP at 6500rpms
459TQ at 5000rpms/ 368TQ at 3000rpms (not as torquey as the big port, but less expensive)

Canfeild 195cc:
513HP at 6500rpms
461TQ at 5000rpms/ 371TQ at 3000rpms

AFR 215 raised runner 2.10/1.60 valves:
546HP at 7000rpms
471TQ at 5000rpms/ 365TQ at 3000rpms

Brodix Track 18 degree 2.14/1.60
558HP at 7000rpms
472TQ at 5500rpms/ 363TQ at 3000rpms

Trick Flow 18 degree 2.15/1.60
555HP at 7000rpms
477TQ at 5000rpms/ 374TQ at 3000rpms

I believe this is ALL the options http://www.camaros.net/forum/biggrin.gif

Definately the TF's, or maybe Canfield 195 if you could come up with an extra $150. Canfields can be had a little cheaper than they were a year or two ago.

ps. I run the TF's and like them.

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68 Camaro, 383 small block with TH350 trans. 11.98's at 111mph and never trailered.

You are including the 200HP shot of NOS in your HP numbers, right.

no, the Nitrous will improve the torque so much on the whole range that you wouldnt know what heads you really need.
And what for, unless you launch on the spray.
otherwise just add 200hp to the top end.

sounds like a nice set up, but the 106 LSA cam with nitrous isn't going to work as well as a 110 or 112 LSA cam. In fact I've seen quite a few nitrous cars back fire through the carb with that much overlap in the cam.

Check out the nitrous cams from comp cams and compare yours to theirs.

I'm from Sb too and maybe you've seen the car... it's the white 68 camaro with the blower and slicks ?

good luck and see ya this summer on the street

Thanks for all the dyno help camaro, and thanks to everyone else for your help.

Almost forgot, It's going in a '73 z/28 that weighs 3350lbs. I plan to drive it on the street occasionally. Hope to run mid-low 11's
on motor and mid 10's on the spray.

CamaroNotcamero, if you're still reading this can you plug in these flow #'s and tell me how they compare to the other listed heads in the above combination. Thanks

I/E 2.02/1.60 28" depression
.1-69/61
.2-145/114
.3-221/158
.4-268/201
.5-281/228
.6-271/246

The 292H from comp cams does not have a 106LSA, its 110. After looking at those dyno numbers that camaroNotcamero put up for that 355, Im wondering how it made the same power as my 383(11.2,292H,vic jr,etc..) that has more compression and otherwise the same. When you dynoed my combo it was
507HP @ 6500r's
452TQ @ 5000rpms/368TQ @ 3000r's 312TQ @ 2000r's

That 355 combo of EA73Z you dynoed makes the same power so what do you suppose is holding my combo back?

EA73Z, why 200hp nitrous? that motor is gonna be a beast as it is. I would choose the Trick flow heads over Dart Pro 1 personally.

Nitro383...Oh yeah and did you happen to notice how the 355 with whatever head, put out more TORQUE at 2000 rpm than your 383!!??

I think those #`s are a bit suspect.
Just my opinion

------------------
78 Camaro hyd cam 406
TH350-3.23 gear
11.86 ET
116.7 MPH

Make that 3000 RPM on that post there, not 2000.
But never the less what gives??

the difference is in the lifters, solids make more torque down low then hydras, a lot more.

Why the 200hp shot of spray you ask(nitrous 383)??? Just in case I run into people like you that have similar setups. hahaha..... Besides whats wrong with more power?

CamaroNOTcamero apparently my comment about the NOS went right over your head. That combination will not make that much HP no way possible. The statement about solids making more low speed torque is real news to me. The profile is what controls the torque and not the lifter type. I really think you need to loose your DD2k and go watch someone actually dynoing something. This is not ment as a personal attack I think you need to get away from your programs and look at the real thing.

Nothing wrong with more power but with your combo + 200hp of nitrous you may be at the very limits of a what a stock gm block can take(assuming your using a stock one). When I told the machine shop I was planning on spraying an additional 250hp to my 383 they laughed at me. I ended that idea right there, and now Im planning on the edelbrock performer nitrous kit. My engine wont see nitrous for awhile until my car is setup for the extra power, but when I do I wont go more than 150hp nitro. My engine should be able to handle nitrous no problem, its one of those high nickel 509 blocks with studded mains.

[This message has been edited by EA73Z (edited 03-12-2002).]

Oger how much power do you think my combo will make with the trick flows(since you appear to be an expert on the subject) http://www.camaros.net/forum/biggrin.gif I figured about 425-450 without the spray. By the way a friend of mine built a 434 smblk, had it dynoed at the engine shop and then put the info in his DD2K it was with in 12% of the actual results not bad for an over rated program http://www.camaros.net/forum/rolleyes.gif

DOH!!!!!!(double post) hahaha

well now that the experts have arrived, then you tell me exactly what the engines are making.
Big heads with a 292 cam will make those numbers if the velocity is there.
These are numbers without accessories, and they could be within i'd say 20hp.
Its a computer program.
A comparible solid will make more low speed torque, reason being a solid lifter will allow for steaper lobe ramps. this why rollers were introduced, they fallow the ramps better, and can deal with steaper ramps.
As you'll find, steaper ramps for the most part with comparible durations at .050" will make more torque, this is why XE cams make more torque, along with the added exhaust duration.

Instead of just building anything that looks like it'll be cool, or letting anyone build anything, i'm helping them by showing them TQ and HP ranges, and the actual effects of bigger cylinder heads on an engine that doesnt need it, or how too big of a cam can actually decrease HP.

I'm helping these guys do there research on these engines, helping them make decisions that will help them remain streetable, and i'm doing this with what i have at my disposal.

I dont think you'll see too many kids tell you that you need a smaller cam, or those heads are too big, or explain how a converter works.

So drop the sarcastic comments, and ignore my posts if you dont like my dynos, i'm trying to help these guys, not start a controversy.