The 'Quickest' A-Body Small Blocks

EL5DEMON340 said
I would put the 71 duster first . On my fantisy list then

It all depends on the flavor.

1968 'Barracuda 340-S' Notchback ... #3074 lbs. Shipping Weight
* Carter AVS #4933 = {630 CFM's}
* Camshaft = .445"/.455" ~ 276*/284* ~ 52* Overlap
* Compression Ratio= 10.5

vs.

1971 'Duster 340' .......................... #3154 lbs. Shipping Weight
* Carter Thermoquad #4972 = {750 CFM's}
* Camshaft = .430"/.444" ~ 268*/276* ~ 44* Overlap
* Compression Ratio = 10.2