Update your HEI to MSD performance! 1981-avanti-ii-esi6783792 50 Thread Adapter - 30

50 Thread Adapter - 30 in Hoses - 3/4-16 in Thread Housing - Fittings / Hardware - GM V6 / 4-Cylinder - Kit

Throttle Cable - 3 ft Long - Bracket / Return Spring - Braided Stainless - Natural - Universal - Kit

610 in Long - Stainless - Big Block Chevy - Each

Fuel Pump Blockoff - Chevy Bowtie Logo - Steel - Chrome - Small Block Chevy - Each

Update your HEI to MSD performance! 1981-avanti-ii-esi6783792 50 Thread Adapter - 30The Ultimate HEI Kit has everthing you need to make your early model GM HEI Distributor a great performance distributor! The kit is supplied with MSD's HEAT Digital 8. 5 amp performance Module (PN 83647). By matching the Coil specifications with the module, MSD is able to produce maximum spark output.