they all will work with HEI, if you have one and don't have the wiring diagram, just call them, they get it for you
HEI is nothing more than a glorified hall effect, it would hook up the same as a pertronix kit, unilite, etc etc, same as points I believe, I have a pertronix II and it hooked up the same
If it's a GM HEI, there is a plug in connection on the distributor for the tach. Just get the connector from Ames. I hooked my original stock tach in my 69 goat to an HEI and it actually worked perfectly.