I just bought a 46 chevy truck and it has a 235 V6 and it came with a 4 speed saginaw transmission, 355:1 ring and pinion,torque tube conversion kit, 11" front disc brakes, and all installation kits that need to be installed. My original idea was to put a V8, auto transmission and m2 ifs. My question is? If I installed these parts and rebuilt the front end. Other than having to shift and not as much power would there be a big difference in the the ride and do you think that I would have enough power to drive 70 mph on highway and drive in mountain areas and keep up with other cars. Thanks