My 68 Dart bought in August of 1982 for $400 present engine is a 363 ci W2 head S/B rated at 550 hp on the dyno, Trans is a 904 w/ Ultimate prepped 8 inch convertor / rear is a narrowed 8 3 /4 w/ 4.56 gears best ET is 10.40 at 126.49 mph 1.40 60ft presently set up to run 11.50s in Street Eliminator