Low compression ignition timing considerations...

With a good converter, it would have surprised you.
A 13.50 @ 102 was a surprise based on the mismatch of parts.....but with the right mix of parts, the car may have dipped into the 12's? Who knows. A 102 points that the car has a low 13 in it. The stock converter is holding it back by at least 3 tenths. Anyways, it's just sitting rotting it the corner of the shop now. The guy that owns the car isn't interested in doing anything with it at the moment but I wouldn't mind having my 4.88's back and a few other parts that were mine....