1/4 mile times with 3.23 gear

K.O. SWINGER said
It seems to me a good stroker and 323 should get in the low 12s fairly easily

Car Craft had an article years ago about that combo in a 66 Coronet that was low twelves...I think it had 3.55 gears and a 9-1/2" convertor. Also, Edelbrock heads. Same combo in an A-body should knock off 3 to 4 tenths.