Buddy's 65 Plymouth. 440, bowl ported 906, 11-1,.557 purple, headers, low rise old Weind 2x4 w/2 600 eddys, 4.56, good converter 9x28 slick, race gas. Ran 11.60-70's. we swapped to box stock open chamber Eddy RPM's, 10.0-1. Runs 11.30's on pump gas with gear reduced to 4.10. No other changes.
Doug [/quote]

That’s a big improvement, this 383 was in my dads car with stock 8.5:1 compression, 528 mopar cam, 1 3/4 headers , same heads/intake, carb at 3500lb tan mid 12s. With the new pistons little bigger cam, aluminum heads, and a little lighter car I’m thinking it may go high 11s