Proform - Engine Distributor Advance Curve Kit Fits GM HEI Distributor 3 Sets of Springs

Engine Distributor Advance Curve Kit. Fits GM HEI Models 1996 and Earlier. Will Not Work on Computer-Controlled HEI Distributors. Includes 3 Sets of Springs, Limit Bushings and Weights. For Custom-Curving Any HEI Distributor. Sold As One Kit.
Product Details:

• Engine Distributor Advance Curve Kit
• Fits GM HEI Models 1996 And Earlier
• Will NOT Work On Computer-Controlled HEI Distributors
• Includes 3 Sets Of Springs/Limit Bushings/Weights
• For Custom-Curving Any HEI Distributor
• Clamshell Packaged For Retail Display
• Sold As One Kit