The 'Quickest' A-Body Small Blocks

It's the intake that holds the early cars back, not so much the carb.

The 71 intake has a big open plenum and the runners are at least 1/4 inch larger. If you look at NHRA's engine factors the 71 has always been about 15 hp higher.

Everyday my money is on the 71 340 over a early one