These MSD advance kits are the same kits that come with your MSD distributor. The kits include the needed components to make your distributor perform like it did when it was brand new.
Advance Weights Included: No
Advance Limit Bushings Included: Yes
Spring Quantity: 6
Adjustable Vacuum Advance Included: No
Quantity: Sold as a kit.
Notes: Includes (6) advance stop bushings for 18, 19, 21, 23, 25 and 28 degrees. Designed for MSD Billet distributors.