Automatic transmission will not shift after engine swap

Isn't there a switch on pedal for shift release or on ing switch check All fuses safety Switch neutral maybe un pluged or broken wire

There is no switch on the pedal. There is a button switch on the carburetor not sure if that is for the transmission???

I think the shift linkage and crossed when he loosened it try to twist the rod and tighten it ,twist the rod shift by hand I remember they get kinked When loosened Turn shift rod tighten try again Let me know

It will shift into drive just fine. It will go in first gear only. I'm guessing it is either the vacuum line or transmission governor. Will check for vacuum . And go from there

make sure your fluid level is not over full or low , 350 trannys are picky about correct fluid level ... check the modulator valve

Found out the transmission governor was stuck free that up works great

must have sat for a while ... good job ,glad everything worked out !!