12's from a 340 naturally aspirated.

1972 340 steel crank, stock resized rods, .030 over, cast heads with some pocket porting only, 10:1 compression, .590 mopar cam, M-1 intake, 750 vac. Carb, 727 trans with 8" 4400 stall, 8 3/4 with 4.56's 29" tall tire. Best et 11.6's @ 115 on pump gas 93 in a 1967 barracuda the 60ft's where 1.6's