Carburetor size

flooding the engine had nothing to do with the 3310's size, but the fact that something was wrong with it or it was completely set up wrong for your car. I have a 750 double pumper on a stock 360, works flawlessly
Amen & I was about to edit my post and suggest a double pumper. Being a 4spd w/3.91 gears. Oh yea, DP all day long!