Powerglide or Th400
Last edited by MarcusTurbos10; Sep 6, 2015 at 05:40 PM.
How heavy is the car ? usually the 2 speed powerglide is used in lighter cars vs the 3 speed in heavier cars...
I have no in person knowledge of a setup like your building but from what I have read on the interwebs you don't generally run a very deep gear with a turbo usually more towards the highway gear end of the world which may slant you towards the glide just to bring the effective gearing back the right direction if your married to the 456's.
I don't know what part of the country your in but I have a 49k mile glide out of a ventura 250/6 chevy bellhousing pattern for sale in the eastern section for $275

