One of the best, and sometimes missed tuning tricks is not to just optimize your initial timing, but to bring in timing advance more quickly than the stock distributor can allow. Bringing timing more quickly than stock can provide substantial increases in both torque and horsepower depending on your combination.This is done by changing the springs under the cap with these lighter weight springs.

Product Features:

• Brings in timing more quickly than stock for more torque and horsepower
• Maximum Engine Acceleration