i concure with not enough convertor and and too much carb, i had a similar setup in my 68 Barracuda 440 .060, zero deck, 84 cc heads (edelbrock aluminum), 577 lift, 260 @50 comp cam, victor intake and 850 demon, with tti 2.00 primarys, 456 gears with 28 inch slicks, 3200 stall, ss springs, etc...