One of my trucks has a 1973 Chevy 350 in it. The distributor is an HEI, which probably isn't original.
How do I identify this HEI? It works fine, but I want to hook a tachometer to it, etc.
I haven't found anything yet that looks like a part number on the distributor.
About all I can say is that it does have vacuum advance and the big cap. It also has what appears to be a three wire connection to the outside world. One of the wires is yellow. (Too dark here to tell about the others.
I'd really like to know what it is so I can do some maintenance, and hook up the tach. Most of the discussions I have seen about HEIs only mention one wire. ??
