Moroso GM Standard Ignition Advance Curve Kit - Advance Curve Kit - All 1957-75 GM/Delco Non-HEI Knurled Head Plugs Brodix SR20 Head

Brodix SR20 Head

1967-1968 GMC C25/C2500 Suburban

When purchasing a Cometic gasket kit

Head works with pistol-grip and other heated sipers that accept a

Moroso GM Standard Ignition Advance Curve Kit - Advance Curve Kit - All 1957-75 GM/Delco Non-HEI Knurled Head Plugs Brodix SR20 Head"Recurve" your distributor for full spark advance at the optimum RPM Three sets of advance springs allow you to adjust the rate of spark advance from quick, to super quick, to ultra quick Weights and centerplates precision stamped with smooth edges eliminate erratic timing Comes with complete installation instructions Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and street performance