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Our dual plane big block manifold is now available with rectangular ports
chrome plated for a shiny finish
Windsor and Big Block versions are built from sturdy cast aluminum
leading to valve seat damage and early valve grind
while delivering increased engine vacuum
Mopar Chrysler BB 383 400 Pro-Billet Ready-to-Run Distributor Our dual plane big blockSpeedmaster Pro Billet Ready to Run distributors are the perfect upgrade for weak OE electronic distributors, outdated points distributors, and large HEIs or DuraSparks. A maintenance free magnetic pickup accurately triggers this ignition with increased output from the amplifier, easily outperforming stock ignitions. It will smooth out the engine's idle, improve starting, and perform at a much higher rpm.
