Fuel, Oil & Brake Fittings. Red Line Fluids & Oil. MSD Ignition Super HEI Kit with Digital 6AL, Blaster SS Coil, HEI Adtr and 8.5mm. MSD Super HEI kits solve the common problem of power loss and a lack of response above 4,500 rpm. Both kits allow you to remove or bypass the low-powered HEI module and coil and replace them with an MSD 6A or 6AL ignition control and Blaster 2 high output coil. The results are more power, an increased rpm range, easier starting, and better mileage and performance. The Super HEI conversion fits all GM V8 engines with the GM HEI internal coil ...