MSD Ignition 8620 Crank Trigger Kit BBC 8Balancer Crank Trigger. HighMargin 4 V8 1968 - 1970

4 V8 1968 - 1970 Chevrolet El Camino 307/5 V8 1966 - 1968 Chevrolet El Camino 230/3

15/8 V 1976 - 1977 Oldsmobile Starfire 3

7 V8 1981 - 1985 GMC G3500 Vandura 350/5

5L L5 2012 - 2017 Volkswagen Passat SE 219/3

2003 - 2006 Chevrolet Express

MSD Ignition 8620 Crank Trigger Kit BBC 8Balancer Crank Trigger. HighMargin 4 V8 1968 - 1970Overview: For a long time, racers have known that one of the best things to do to an engine to improve its performance is to stabilize the ignition timing. The MSD Flying Magnet Crank Trigger system does exactly that by using four magnets embedded in an aluminum wheel. Although similar in appearance to other crank triggers, the MSD Flying Magnet design works on a different principle. Most crank triggers have a wheel, with steel studs sticking out,