Beneath the bolt down cap and MSD race rotor you'll find MSD's accurate mechanical advance assembly. Different advance springs and stop bushings are supplied so you can easily tune a curve to match your needs. Plus, there is a vacuum advance canister to increase economy on long drives. For protection, there is also an easy-to-set rev limiter!

Features

Now includes built-in Rev Limiter!

 Powerful built-in module produces a 7.5 amp single spark through high rpm

 Easy-to-adjust mechanical advance with supplied springs and stop bushings

 Vacuum advance canister for improved economy (can be locked out)

 CNC machined billet aluminum housing and billet aluminum base

 Housing is 5/8” smaller in diameter than stock Ford distributors

 Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range

Polished steel shaft is QPQ coated and guided by a sealed ball bearing

 Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction

 Mechanical advance assembly can be locked out for crank trigger systems

Advance weight pins are staked and tig welded to the plate

 Nylon pads ensure smooth operation of the advance weights

 Supplied with small diameter cap with HEI style terminals and race rotor (will accept 8441 Cap-A-Dapt)

Does not require an MSD Ignition Control

CARB E.O. Approved

Simple and clean installation with only three wires to connect