'Match Race' ~ 1968 Barracuda '340-S' vs. 1971 'Duster 340'

Id go with the 68. I think the 68 had better compression than any 71 and the 625 would suffice through the traps. The 68 also had better exhaust from the factory. I think a 68 Dart would be lighter still. I had a 68 340 (TQ though) in my '65 and would regularly tangle with a neighborhood 340 duster. Got him every time but I was probably 300 lbs lighter.