I have a 1986 (302) Bronco. It starts & idles fine until it get up to temp. Then it bogs like a plugged filter with some slight back firing form a start until you get to 25 or 30 mph then it runs fine until you stop again. I have changed both fuel pumps, fuel filter, regulator on fuel rail, Throttle Position Sensor, EGR valve & air by-pass valve.

 

If it is back firing, I would suggest you check the timing.

 

Tried timing it was off but still having the same problem. Any way something on the engine could be related to outside temp. ran fine yesterday outside temp. 60F today near 80F.?