HEI Distributor 50,000V 50K Coil w/Adjustable Vaccum Advance,Red Cap This a brand new Pontiacs V8 HEI distributor with red cap. Designed for Pontiac v8's (301,326,350,389,400,421,428,455'S) w/ Adjustable Vaccum Advance Has 50,000 volt coil ,to insure accurate and reliable timing to 7,500 RPM Fully CNC machined and polished housing