[NEWFISHER]

Working at a GM dealership most of my life I have seen hundreds of aftermarket HEI modules fail. The distributors seem good but you would want to swap in an AC Delco module. My 65 had an aftermarket hei in it when i bought it. I immediately bought a gm module and tossed it in the glove box. After having it towed out of the rain a few months later, I replaced the module and am still kicking myself that I didn't do it when purchased. You can also buy a complete delco hei from your local delco supplier. Even a used gm dizzy with a new shaft bushing, hall effect sensor , pickup and a module would be better than a chineese ebay one.