Ok I think I have decided on a 700r4 4spd auto with lock up torque convertor. Its a GM and they are in alot of 83 to 92 GM cars, they are a dime a dozen here. The gear ratios are 3.06/1.62/1/.7 and 2.29 dang near perfect. So at 2500rpm, I should be at 79.13 mph
(2500/.7/3.889 x 91 x 60/12/5280= 79.whatever) man that would be perfect. If you guys want, I will take pics and post them on this little endeavor.
If anybody has any experience with this particular trans. please share it good or bad