318, made changes, no gain?

while increasing the rear tire size by 4" in diameter you basically negated the change in the rear gearing..

leaf springs??? rear shocks???

cylinder heads??? 318 heads?....valve springs???

MP484 cam is alot of duration for 318....but the converter should have helped it out...

wild numbers out it sometimes????? spinning tires???

what carb..? How is the distributor curved?