I've always ran 8 inch converters and 4.30-4.56 gears. The Duster I'm building now is getting a 500" pump gas big block, 9.5" street converter, 3.55 gears, and a 26 or 27 inch tall tire. I want to be able to drive the thing to the track and run 10's.


1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual