Lower gears and still slugish.

Running street tires. My 318 is .30 over with a eddy 7177 cam, eddy aluminum heads, eddy rpm intake, 650 quick fuel carb, long tube headers, full MSD ignition. My 8.8 is a limited slip with 3.73s. I had a 7 1/4 with 2.76s. Taking off from a stop is horrible. Looked like a stock converter, I know a good 2500 stall would help but there is literally no difference with these gears.
You need more than a stock stall to go with the cam, heads, and intake. However, with that build and 3.73's, it should be fast. You need to start from ground zero. ignition timing 1st. Is the valve timing correct? Compression? this list will be long, but it sounds like your way way off on something.....