My 69 Camaro is going in the shop for a bunch of performance goodies. Right now i'm at 365HP at the wheels with a Muncie M21 4 speed, 4:10 12 bolt rear. When i get my car back it should be right around 450 at the wheels so i will need to upgrade my trans. The car will be a street car mainly but i want to take it to the drag strip once or twice a year when my buddy does track rental days and run fast there. My question is which trans would you all recommend? Right now it's between a G Force 5 speed or a 5 speed from American Powertrain.

Any suggestions or comment????