Thank you for your reply, I have a 750 double pumper, a 5000 stall converter in a two speed powerglide transmission, and a 4.30 rear axle. I race 1/4 mile and only have one track here on the Island. Let me know if you need any more info on the car.
If you still have the 750 DP on the engine then I'd try a bigger carb if you're looking to go faster. You might also want to have the intake manifold ported. I'm guessing that you're around the 625 hp range? What does the car weigh with you in it? 2900?