Transmission suggestions.

[Malice]

So I'm looking at putting in a 5.3l in my 1950s chevy pickup. With possibly adding about 7-8 lbs of boost on it. I'm wondering what transmission you guys would suggest with that motor. I believe the gearing ratio is going to be something like a 3:73. I have some flexibility on what i am going since I am just starting on the project which is a cab only.

Looking at Chassis from TCI and Art Morrison. This will be a daily driver with adjustable coil overs front and back. Not sure if i should be looking at a T56 or a 4L60. Let me know what you guys think and suggest. I'm just trying to get some ideas at this point