Oil pump drive gear stuck

Ok, fellas, here's what happened. I kept turning the drive gear with a screwdriver in the slot hoping I could back it out. It had a slight to moderate resistance while doing so. I probably turned it a hundred or more times. Looks like this burnished the bushing. As I kept turning it it would drop a little farther then stay at that point then drop a little further more. Finally dropped down enough to engage the cam gear. Measured how far the top of the drive gear was from top of the distributor hole and compared it to the gear on the old engine. Distance matched so figured the hex was fully seated and cam gear fully engaged. Slot in gear not pointing at #1intake bolt at TDC so had to rewire cap for new #1 wire position. Had already primed oil pump, primed carb, started right up. Had 60 psi oil pressure at start up. Thanks everybody!