not to mess up anyones mind,noone ever mentions the turbo 375.looks identical to the turbo350.i had one in a 1972 impala.ckeck it out.
Or the TH350C which preceded the 700R4. I've got one in my '50,just haven't hooked up the lock-up function.
B&M do a kit to do away with the need for all the factory vacuum gubbins...