Check your part number and measure shaft distance, if you do have a 360 it is a LA engine. If the shaft is indeed longer you may have one that fits a big block motor. If it is, grinding on the tip of the shaft will do you no good, the distributor turns ccw LA engines cw …. check out the part numbers. I do know with out looking at the distributor if the inducer ring can be adjusted.
Remove your ECU completely, find your hot wire that feeds this, this is the power you use to power your new distributor.
