Intake runner size for 582 BBC -tech help-
A question for the collective experience of RJ. I am working on a 582 Dart low deck BBC. (4.600boreX4.375stroke) I am building this for pump gas, 10.5:1 compression and wondering what size heads to run on it. I am looking at a set of aluminum Dart Pro 1 and they are offered in 325cc,345cc and 355cc for the same $$$. I thought the 325cc might not flow enough for the cubic inches, even though they would probably be the most responsive on the velocity theory. I will run a Comp Cam solid roller 256-263* @ .050 duration, .660 lift camshaft(3500-7500). The car weighs roughly 3300# and I have a 4.56 gear, th400 w/3500 stall, and Hoosier Quick time pro 11.0" tires. The car is 90% street, seeing occasional 1/4 fun. Big post here, but want your opinion on intake runner size. Thanks