The street Pro-Billet is a popular route for people looking for proven race performance for their street cars. A vacuum advance canister provides economy and the proven MSD mechanical advance gives you the opportunity to dial-in a timing curve to fit your needs. Inside, an oversized steel shaft is QPQ coated for low friction and rides in a sealed ball bearing at the top of the distributor with an extra-long sintered bushing at the bottom. This combination keeps the shaft steady creating accurate spark delivery at any RPM. The street Pro-Billet relies on a magnetic pick-up to trigger the MSD Ignition control which delivers the powerful sparks to the coil. This pick-up is extremely accurate and never needs adjusting. Product Features:Designed for street/performance use w/mechanical or vacuum adv.Must Be Used w/An MSD Ignition ControlSupplied w/An HEI Style Distributor Cap And RotorAccepts Cap-A-DaptsO-ring seals can be installed for oil press. control (Mods only)Special 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
