The 196 6cyl I have in the Rambler has the points distributor which is a GM- delco unit, and uses Chevy 194-250 6cyl points, cap and rotor, but the shaft is AMC only so I can't just swap in an factory HEI unit.. if I got a new distributor for my engine ( there $40 and my car would have little down time this way ) and got an HEI distributor for a 250 6cyl, couldn't I remove the distributor head from the shaft and just swap them?