tranny issues???

:sad: so i am still having tranny issues, its a 727 and i just had a shift kit in it, can anyone help me diagnose whats goin on and why its acting up. i have tested the pump and tranny pump is fine, i have also adjusted the bands and they are fine, but it still will barely move in any gear, i have givin it plenty of time to build presure also. the tranny shop guy who put the shift kit in said he had the install a small plug near the front end of the trany under valves body, he said he didnt see y but thats what the kits instructions called for. could this be my problem....??????the plug had a small hole in it to just slow the flow i guess. are there any other things i can do to find out whats wrong w/ it thanks guys..