I want the look, but it's for a street driven SBC... plan on Pertronix too. Can I use the flat-top YC Mallory cap on a vac. adv. distributor? Is there one brand that is easier to adapt than others? Has anyone ever done this before? Am I a fool?
You can get sort of the opposite, Mallory design (like '32-48) Mallory distributor with vac hookup. Instead of having a vac can that advances a movable plate to supplement the short centrifugal advance, it applies a brake that shortens/slows a deliberately long curve at full throttle. I forget the prefix that ID's this (maybe Z instead of Y?), but just look for a flattop Mallory with a vac nipple on the cylindrical protuberance that is unfinished on the vacless model.