My 70 340 Dart. stock pistons, bottom end, intake and exhaust manifolds, carter avs and duel point. The ONLY non stock part on the motor was the camshaft, it was a crane ecopower with a 470-ish lift. 4 speed and a 3:91 gear, the car ran mid 13's all day long with the best of a 12.98. 1986-1990 I...