Mopar Electronic Ignition Distributor B-Engine Plym Dodge 383 / 400 NOS Cap

4fortyDemon said
Will, do you know the advance curve on it?

Pulled this from the ad:

had it made as a duplicate of the 440 A-134 hi-po specs, true 2-stage springs, a true street performance curve:

Less than 4 deg. mechanical adv. below 650 RPM (for cranking)

approx. 8 deg. at 950 (fast idle)

Approx 13 deg. at 2500 (HP)

Vacuum: near-zero at 10" vac, then 9-10 deg @ 15" (fuel economy / no oil dilution)

Note that these numbers are all DISTRIBUTOR degrees, double for crankshaft degrees.