A blueprinted distributor with a known advance curve takes the guesswork out of a Big Block Mopar tune, which is more than can be said for a forty year old unit with worn bushings. This one has a built-in magnetic trigger module, an adjustable vacuum advance canister, and a premium cap with brass inserts rather than aluminum.

Proform 440-431 Electronic Distributor Features:

• Fits Chrysler big block 8 cylinder engines.
• Blueprinted and factory set with a high performance advance curve.
• 22 degrees of mechanical advance plus an adjustable vacuum advance unit.
• Built-in module with a magnetic trigger.
• Premium tan cap with brass inserts for maximum conductivity.
• Retro-style Mopar emblem beneath the cap.
• 2.15 in. aluminum shaft, 7.500 in. overall length.
• Clockwise rotor rotation with a sealed 9-terminal lead wire connector.
• Requires a separate ignition control box; coil, coil wire and rotor are not included.
• Sold individually.