What size headers for SBC 383
Our engine is near complete, it is a SBC 383 and should make at least 550 hp. It is 12.5:1 compression, Victor jr intake, roller cam with 0.6 inch lift, 292 duration. Brodix Racerite heads.
I have an old set of 1 5/8" headers, what size do you think is best for this engine? Thanks for your help.