Drove the 64 Impala project for the first time this weekend and was disappointed. The guy helping me was excited last week at it's power before I could get there. It is supposed to have over 400 ft lbs of torque and yet it does not feel any better than before I built an entirely new engine with a new 700R4 trans. It feels slow. I wonder if the standard rear end that it still has is just wrong for the application. I'm guessing it was about a 308. It's a 64 Impala that used to have a power glide with a 327, which is now about a 360 with as large of exhaust and intake as possible for the stock heads. The cam is a comp cam 262. The crank a balanced 350. The run in was very encouraging. The drive, discouraging. Wondering what anyone would recommend for the rear end on this car?