Starting on the inside, a 0.500 In. oversized steel shaft spins in a sealed ball bearing and sintered bushing for long endurance and accurate spark delivery throughout the entire RPM range. Mounted on top of the shaft is an easy-to-adjust chromoly mechanical advance assembly. Different advance springs and stop bushings are supplied so you can choose from 24 curves. A maintenance-free magnetic pick-up provides accurate trigger signals to your MSD Ignition control. A precision-manufactured reluctor that is connected to the shaft is responsible for triggering the pick-up. The distributor is topped off with a high quality black cap and race rotor. Product Features:CNC machined billet aluminum housing and billet aluminum baseWill not accept a vacuum advance canisterMust Be Used w/An MSD Ignition ControlO-ring seals can be installed for oil press. control (Mods only)Supplied w/Socket Style Distributor Cap And RotorSpecial oil tract improves lubrication to the dist./cam gearNylon pads ensure smooth operation of the advance weightsAdvance weight pins are staked and tig welded to the plateMech. advance assem. can be locked out for crank trigger systemsAdvance plate and weights are fine blanked from chrome moly steelQPQ coated for friction reductionQPQ coated polished steel shaft; guided by sealed ball bearings
