Garage Cabinets, Garage Storage, and Garage Organization

hello everyone, my first post should almost come off as a R.I.P. message for my car but i'm not willing to call it dead yet even with all its problems...

i have a 1971 Galaxie 500 powered by a 6.6L 400 v8, stock from the ground up right down to the 2v motorcraft carb, and C6 trans.  but as of a week ago its parked in the yard.

coming home from work one day it all the sudden began driving like i was in wet cement, it lost all power so in an attempt to limp it home, i was less than 1/4 mile away it died, tow it to the house and tear into the motor, find a bent pushrod, so now new rods, new lifters, 2 months ago put on a new fuel pump, rebuilt the carb, even dropped the gas tank and cleaned out the entire fuel system...  changed the oil today, transmission fluid level is perfect... but still crank it up purrrs like a kitten just as it should, engine runs fine but it will only baby step along no matter how much gas you give it, could the transmission be shot? or just hurt? it rolls perfectly smooth no jerking or lurching like the tranny is slipping it just refuses to get up and go so i'm at a loss for ideas, any help you guys could give would be great, thanks in advance for any ideas