COMP Cams - SBC Pro Magnum R/A's 1.52 Ratio 3/8 Stud The MSD Module Selectors provide

The MSD Module Selectors provide the ability to switch between two different rpm or degree modules

System features include all mandrel-bent 2

Shock - Nitro Drop 2 - Twintube - Steel - Black Paint - Rear - 4 to 8 in Lowered - GM Fullsize Truck 1977-86 - Each

Water Neck - 90 Degree - 1-3/4 in ID Hose - Swivel - O-Ring - Hardware Included - Aluminum - Black Anodized - Chevy V8 - Each

Distributor Cap - HEI Style Terminals - Brass Terminals - Screw Down - Black - Vented - Small Block Mopar - Each

COMP Cams - SBC Pro Magnum R/A's 1.52 Ratio 3/8 Stud The MSD Module Selectors provideRocker Arm Ultra Pro Magnum 3 8 in Stud Mount 1. 52 Ratio Full Roller Chromoly Small Block Chevy GM V6 Set of 8