New Guy

R

rac4

Member
Hey everyone,
New member from Kalamazoo Mi. I've got an 86 vette/coupe that I've owned for 5-years. It was bone stock with 67,000 miles on it when I got it. I've done a few things to it since then. Re-painted, TPIS headers with cat delete and high flow mufflers, ported plenum, TB bypass, got rid of the 624 cast iron stock heads and installed Edelbrock aluminum rpm's, 1.5 roller rockers, K&N filter, guted air pump, new seat covers. I've been kicking around a cam change, I would like to go with a roller cam but the expense is awful, so it looks like I'll stick with the flat tappit. Future goals are large tube runners, High flow base, and as mentioned a cam change to support the other modifications.
rac4
 
Thanks for the suggestions. I figured on a chip tune when installing the new cam, using PCMforLess. Would that change your recommendation?
Thanks
 
:D Welcome to Grumpy's Performance Forum, rac4. Sounds like a well thought out build. As Grumpy indicated, choose your cam grind to make the most of the combo you are putting together and avoid the temptation to overcam it. Been there, done that many moons ago in my ill spent youth. After swapping to a more conservative cam (the old GM 151 cam in my case), I had much more power in the RPM range where I needed it on the street. That cam had around 10 degrees more duration at 0.050" lift than the max recommended for your combo. But I was running a 327 with 10:1 compression in a 3100 lb. car with 4.11 gears and a 3-speed stick with overdrive. No smog equipment, no computer, no power brakes and no torque converter stall speed to deal with. And that was when we had decent leaded high octane fuel.

I would say that Grumpy is right on the money matching cam specs to your build. Another thing that will help you is the better breathing heads you've installed. They flow well enough for what you are doing that you won't need to push the limits of the range of cam specs otherwise suited to your engine combo. In other words, you won't need to overcam it slightly to crutch a set of mediocre flowing OEM heads in order to flow enough to support the increased power you are looking for. Please keep us informed of your progress and let us know how she runs.

Happy Motoring,

Harry
 
Thanks for the suggestions Harry. I've been gone for a few day's, I like the revised back ground coloring, the other was hard to read.
 
:D You'll have her going before you know it, rac4. Please keep us informed of your progress. Sounds like a really interesting build.

Yeah...... I like the new forum format as well. Much easier on the eyes.

Best regards,

Harry
 
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