Just finished a rebuilt 700R4 install on the '86. Driven it probably 100 miles. Will shift at the normal mph's most of the time but at times, the shift points will raise to higher mph under normal acceleration. Seems like a heavy accelerator will fix the problem. At one point, as I was slowing down, the trans was downshifting but would not upshift at all. Slowed to where it was in 1st and would not upshift until I floored it to get to upshift and then it started shifting normal again.

Trans shop didn't have much advice other than drive it and see if it would work itself out...suspected maybe trash in the system.

I'm thinking random sticking governor?? TV system?? It was properly adjusted....slide case back to firewall, WOT to set. Should I pull the governor for visual inspection?

Any other thoughts?