Hey i might put a 700r4 in my car instead of a th400 for cost reasons. my engine pushes about 430 horse, and i plan on supercharging it, so transmission is gonna be an issue. can i build it up to withstand all the power or am i just better off buying the $400 torque arm and crossmember for the th400? i have 4:11 gears and want to be able to drive on the hwy so...i don't know what to do. help!