What would be a more effective boost for my situation? The motor is a 318, .477/.480 lift cam, stock compression pistons, headers, 904, stock converter, 3.21 non sure grip 8 1/4. I want to get the tires to break free a bit easier and pull a bit harder in second gear. Should I go with a 2000-2200 stall tc, or just up the ratio in the 8 1/4 to a 3.55 or 3.73 with a sure grip? I pull 16-18 mpg at 65 on the hwy now and would like to retain as much as possible, as well as getting my ets down to the solidly in the mid to high 14s. So far, my best is 15.02.