Well I threw a car back together and got back in a dirt track car. Right now the car has 1.75" headers and rules state we gotta have 1.625" headers.. All dirt track guys think you gotta run open headers but since this is a very restricted class I'm thinking about just Y off into a single 3" and keep some back pressure for some low end torque off the corners..
It's a 3250# camaro with a 355 with 4v flat top Pistons, 76cc open chamber heads milled .060, 231/231 .512/.512 106lsa, dual plane intake, 500cfm two barrel carb..

 

Sounds good to me .

What kind of power is that setup making?

 

About as much as a stock 5.3 lol

 

what kinda RPMs do you turn with that thing?

 

3" exhaust will flow more than enough for that motor. I had a 1983 camaro and my buddies convinced me to hack up the exhaust for MOAR POWAR and it just killed the extremely limited power it had

 

5800-6000 or so, tac that was in this car is a shift light tac so I dont really know lol..