My 3550lbs '71 340 Cuda ran 12.4'@108 in 1/4 back in '86..which equates to something like >
60 Foot E.T. : 1.72
1/8 Mile E.T. : 7.82
1/8 Mile Trap Speed : 86.88
not that far off yours with more weight and a crap 340 motor compared.....the motor was stock bottom end (under 10:1), stock 2.02 heads (215cfm?) made a true 368fwhp, .590" sft cam, 850DP, 4.30's and a 4200 stall. That doesn't help you any because its hard to diagnose anything, but you can see how bad things are with your combo, around 100hp down?.....I would get the EFI sorted or go back to a carb for starters.
