I've got a Pertronix unit fitted to my Spit, and it works great. Problem with points are, that right off the bat, the gap starts changing with wear. And getting good quality points that can be gapped properly is getting more difficult.
They also tend to misfire at high rpms.
There's also more spark from a electronic unit which means more complete mixture burn, ie, more power, better emisions. The Pert. unit definitely helped in getting my car through emissions testing.Ron
'78 Spit
Vancouver B.C.