When I bought the car it used it already had the HEI distributor fitted. It appears the distributor was made by Mallory. In the some 60K miles I have put on the truck, I have had zero problems with the ignition. Parts are very easy to get. I do have paper work from the original owner that I might be able to get a part number off of. I am guessing it was originaly sized for the Buick 262. The Ford alternator was a modification I did myself. If I wanted to upgrade or replace the alternator, it would be a lot cheaper now.