Update your HEI to MSD performance! 1981-avanti-ii-esi6783792 Fitting - Bulkhead Tee -

Fitting - Bulkhead Tee - 3 AN Male x 3 AN Male x 3 AN Male Bulkhead - Aluminum - Black Anodized - Each

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

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

Speed Sending Unit - GPS - 10-30V - Universal - Each

Air Filter cleaner solution and BBK Blue Re-Oil so you can re-new your BBK air filter for thousands more miles

Update your HEI to MSD performance! 1981-avanti-ii-esi6783792 Fitting - Bulkhead Tee -The 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.