I'm considering installing the Crower 404LM cam, specs:
236/245 @.050
.586/.612
110 Center

This is a roller hydraulic cam. I'm also considering doing some port work to the heads. This is a street/strip vehicle so would this be a good choice?

Thanks,

Lee

------------------
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I think its good for a street car but a bit mild for a street/strip. The exhaust lobe is good but the intake needs more duration, 245 int. and exh. would be nice. I think you need a cam in the mid 240s to work well as a street/strip. Porting would help - clean up the guides, do some bowl work, polish the exhaust port, clean up the chamber, and unshroud the valves too. It should pick up atleast 50hp, if you have the stock cam. http://www.camaros.net/forum/biggrin.gif
With 115mph you should be in the mid 11s. After the cam/head work it should go 120mph easy, and some low 11s. Also try a single plane if you dont have one!

------------------
67RS CAMARO - STREET CAR, 502 PUMPGAS, HYD. ROLLER, TH350 w/ATI 10" 12-BOLT w/373 ET= 10.47@129 60FT=1.55 ~ ON MOTOR, ET-STREETs w/MUFFLERS
-----------
DAILY DRIVER: 91 B4C CAMARO, 305TPI, TREMEC 5-SPD, 342 GEARS, K&N, CRANK PULLEY, EDELBROCK HEADERS, FLOWMASTER, ET=14.1@98 60FT=2.06
SOON TO BE 383 W/ SUPERRAM

67RS502 - Thanks for the input. I talked to a GM parts place and they said that the cam I mentioned was borderline too big with only 9.6 compression. I'll probably be putting in the Yank 4000 stall converter, they claim because of the altitude it will stall much lower and is still quit streetable. I believe the stock converter is why the cars not in the 11's, so with that converter and cam it should be solid in the 11's.

Also, I'm using the Holley Commander 950 MPFI so changing the manifold is out!

Thanks,

Lee

------------------
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67 CAMARO
I forgot that you've got the Holley EFI, which has a single plane.
I think Comp cams 242/248 duration hyd. roller would be a great cam for your combo.
As far as stalls - I hope that the 4000 stall your talking about is the flash point not
foot brake rpm of the converter. You need something that stalls around 2500 foot brake
and flashes to around 4000. I have a ATI 2500 footbrake stall and its really streetable,
and flashes to above 4000. Before I had a 3500 footbrake stall that would flash to almost
5000 and that wasnt all that great on the street - anytime you'd get in to it half throttle or
more the thing would be at 5000rpm, even at 20mph in high gear, it was just too loose.
Thats why I've got the 2500 stall now and I love it, its great on the street and thats all the
car needs to run good anyways. These things make so much torque that you just dont
need much stall.
How do you like the Holley EFI system, is it easy to program?
Does it idle well, and is the driveability good?
Since I have a Demon carb and the drivability suck, I want to convert a
tunnelram to EFI and I'd like to know which system is good and user friendly.
Thanks


------------------
67RS CAMARO - STREET CAR, 502 PUMPGAS, HYD. ROLLER, TH350 w/ATI 10" 12-BOLT w/373 ET= 10.47@129 60FT=1.55 ~ ON MOTOR, ET-STREETs w/MUFFLERS
-----------
DAILY DRIVER: 91 B4C CAMARO, 305TPI, TREMEC 5-SPD, 342 GEARS, K&N, CRANK PULLEY, EDELBROCK HEADERS, FLOWMASTER, ET=14.1@98 60FT=2.06
SOON TO BE 383 W/ SUPERRAM

67RS - This yank 4000 is supposed to only stall to 3400 because of our altitude but the more I think about it the tech never even asked what my HP or TQ is! The stall is dependent on the amount of torque right? Maybe I'd better talk to another rep.

I do love the Holley 950 system, extremely easy to adjust the timing and fuel curves. I have the MSD HEI distributor and the Holley completely runs the timing. I have the timing at idle set to 22 degrees and it idles at 850RPM real smooth. You can adjust the timing at any RPM vs MAP so your in total control at any rpm and throttle position. You can make changes real time while driving down the road! This is another reason why I want more cam, it's real easy to tune the negative effects out of a big cam for a street machine.

Our outside temp right now is 15 degrees, I had to move the camaro and it fired first crank, dropped it in gear and moved it. No stumbling, dying etc. Fuel injection is the only way to go!

I'm still trying to figure out how your et's are so good! How did you get your 60' so low?

Lee

------------------
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67RS - I forgot, what spark plugs do you use on your 502?

Lee

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Plug I've tried are: Rapid fires, some cheap AC Delco's, and Bosch +4.
They all work about the same, I couldnt tell any difference.

As far as my 60ft times, I think they suck.
The car spins about 5 to 10 ft out the hole. I just have CE drag shock up front,
Frame connectors, 28x12.5 ET streets, and some home made Traction bars.
The rear suspension is working good, the T-bars really press the ET streets to
the ground, but the car just won't weight transfer well. I'm going to try some
small block springs up front soon along with some other ideas. The thing
should 60ft in the 1.40s, so thats my goal, I think I can get it there.
A 6-point cage with swing out bars coming soon, should help too.

I've been trying to get out to the track for the passed month, but the weather
has been crappy every friday night. I need to get out to the track before I make
some changes, for a before/after comprising.
Right now I'm trying to get more power out of the thing. I've got a 3 1/2" K&N,
1000 Denom, 1" spacer and a team-G intake. The new induction setup going
on will be a ported/coated Dart intake, a 2" Wilson spacer, a K&N top, and a
ram-air setup. I hope the will be worth around 2 tenths??? If I can ever get out
to the track we'll see. I'd like to test this setup first before making any
suspension changes.
There's a member here who has a buddy that has a blue 69 camaro that runs
mid 10s and 1.50s on Drag Radials if I remember right. The car is in a resent
issue of Chevy HI-PO, (upper right corner of cover)
Thanks for the EFI info, in about a year I may look into swapping to a EFI
tunnel ram, a tunnel ram should make more power and the EFI more
streetable - best of both worlds http://www.camaros.net/forum/biggrin.gif


------------------
67RS CAMARO - STREET CAR, 502 PUMPGAS, HYD. ROLLER, TH350 w/ATI 10" 12-BOLT w/373 ET= 10.47@129 60FT=1.55 ~ ON MOTOR, ET-STREETs w/MUFFLERS
-----------
DAILY DRIVER: 91 B4C CAMARO, 305TPI, TREMEC 5-SPD, 342 GEARS, K&N, CRANK PULLEY, EDELBROCK HEADERS, FLOWMASTER, ET=14.1@98 60FT=2.06
SOON TO BE 383 W/ SUPERRAM

67RS - You must have changed out the cam, pistons and heads on the 502! What brands are you running?

Lee

------------------
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" TARGET=_blank>http://www.1967camaro.net
</A>
ZZ502 Chevelle
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You must think that I have a crate motor - nope!
I picked up a 502 block for $800, I had a crank and rods out of
a 454. Then I ordered some Lunati pistons (.125 mini-dome)
Then I got some 049 oval-port heads for a $100 - cheap.
Got some 2.19/1.88 valves, and bowl work. Then I got
a Lunati custom hyd. roller - 252/263, 612/611 on a 110LS.
And theres one cheap 502. 10:1 comp. with milled heads.
The final upgrade when the car goes low 10s will be a set
of TEA - total engine airflow - CNC ported Canfield heads
which flow 400cfm on the intake. Hoping for 9.90s

------------------
67RS CAMARO - STREET CAR, 502 PUMPGAS, HYD. ROLLER, TH350 w/ATI 10" 12-BOLT w/373 ET= 10.47@129 60FT=1.55 ~ ON MOTOR, ET-STREETs w/MUFFLERS
-----------
DAILY DRIVER: 91 B4C CAMARO, 305TPI, TREMEC 5-SPD, 342 GEARS, K&N, CRANK PULLEY, EDELBROCK HEADERS, FLOWMASTER, ET=14.1@98 60FT=2.06
SOON TO BE 383 W/ SUPERRAM

67RS - I see, it sure is a potent combination, I'm hoping a good cam and converter will get us mid 11's.

Thanks,

Lee

------------------
1967 ZZ502 Camaro
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" TARGET=_blank>http://www.1967camaro.net
</A>
ZZ502 Chevelle
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</A>

RS502, wouldnt heavier front springs transfer the weight better? it may just be the shocks, a nice set of 12 way adjustable would let you tune your 60' ft times through your weight transfer.