MSD - 8428

Mechanical Advance - Street Fire - Weights / Springs - GM / Street Fire HEI Distributors - Kit

GM HEI Weight And Spring Kit; Stock Style HEI Distributors; Incl. Springs/Weights/Bushings; Race Only;

This kit will help you achieve the solid ignition timing you need. The kit comes with new advance weights, springs to set the rate of advance and new bushings. This is designed for the street fire HEI and stock style HEI distributors.

• Fits Street-Fire HEI
• Fits Stock Style HEI Distributors
• Not for MSD Billet and Pro-Billet Distributors