HEI conversion benefits

A GM module is basically a small MSD without multiple spark. You can mount it on the firewall ,fender ect. Lots of wiring diagrams on the web. It will eliminate the ballast resistor. All you need is a coil, a module and a heat sinc. Less than a $100. Spare module just in case. I doing 2 for my cars in case the MSD fails. Don't use that big cap.