ok motor 1975 455 stock bore.elderbrock performer intake. 6x4 heads. headers. flowmasters..turbo 400 stage 2 shift kit. 8.2 Bob rear end eaton posi unit. 355 gears 14 inch tiers.
Sounds like a pretty good set up. 2.25 or 2.5 exhuast? I would use a 068 w/1.65 rockers.
With a stock 68-72 iron intake, or a RPM, and 2.5 exhaust, a RAIV duplicate w/1.50 rockers would be better.
