jmat2407

iTrader: (-1)

So I got a very healthy L31 350 for basically free. Its going into an 89 rs that was originally equipped with a 2.8L.

So far I got..
-Edelbrock Performer RPM Air-Gap Intake Manifold
-Vortec heads are off to a buddys shop to get a simple P&P
-Would have liked to run a Q-jet but could only find the Air-Gap Intake in a spread bore so its probly going to have a Holley carb I have already =/

My power band should be around 1500-6000. I would like to maintain some tq but I'm more of an upper RPM guy. I'm a big fan of Comp Cams so I was thinking something like the Thumpr cam would be a good choice?

http://www.compcams.com/Cam_Specs/Ca...?csid=216&sb=0

I am aware I have to get new springs and everything to allow the Vortec heads to lift higher than .48

Thoughts/Opinions on this cam or suggestions on a different cam would be very helpful.

skirkland1980

iTrader: (2)

that cam looks a little excessive to me. is this a daily driver? comp can recommend the best cam for your application. you can download their cam software for free.

jmat2407

iTrader: (-1)

Yes it is a daily driver around town (about 5 miles each way) with a th350 trans with 2400 stall and 3.42 rear end.

skirkland1980

iTrader: (2)

the vortec heads need too much work ($$$) to benefit from a cam like that. but the extra stall will like that cam. thats a lot of power hittin those rear tires. hope they stick

one92rs

iTrader: (5)

CS XR276HR-10 that is the cam number comp specced for me on a 99 vortec 350. they said all i would need to do is run the beehive springs like the ls1's. 224-230-502-510-110 106centerline. they said i would not need a stall either.

jmat2407

iTrader: (-1)

I did see that cam as well, however under the notes section tho it said machine work required for the heads??

http://www.compcams.com/Cam_Specs/Ca...?csid=188&sb=2

How did that cam work for you? Good increase in hp and 1/4 times?

Also forgive me I don't know much about cam specs.

one92rs

iTrader: (5)

hmmm. the guy that specced it for mefrom comp said i would only needs springs. the beehive. other than that they would work. ask the machine shop but for over ten years buggy and them at comp have never let me down.

Duts87ss

iTrader: (10)

Considering the Vortec heads pretty much flatline over .480 lift, I see know reason to use that cam at all. Maybe something along the lines of the GMPP Hot Cam using 1.5 rockers; this would still have your lift at .495. It would probably work well with the 2400 stall that you already have also.