MSD Ignition 8499 Distributor Cap Bolt Down KitDistributor Cap Hold Down Distributor Cap Bolt Down Kit Distributor Cap Bolt Down Kit; Securely Holds Down MSD Ford Style Cap PN[8408 84083]; SPECIFICATIONS: WARNING CA Proposition 65: No FEATURES: Securely Holds Cap In Place Under Racing conditions and severe vibrations the cap can move with the spring clips, but with these bolt down style clips this will prevent any movement! Racers never stop experimenting as they search for every way to wring out