Holley EFI Flying Magnet Crank Trigger Kit - 8 in Balancer - GM LS-Series OGEN.DB-30417 510 in - Duration 270/276

510 in - Duration 270/276 - 114 LSA - 1200/5200 RPM - Big Block Chevy 46-422-9

Flame Thrower III

featuring a unique sensor engineered to be mounted near the crank pulley which creates a signal from 4 machined grooves or 4 raised bolt heads to precisely monitor engine speed

030" steel shim when installing new flexplates on Chevy crankshafts

Vehicle Applications: 1970-1981 GM F-Body Rear Leaf Spring Set

Holley EFI Flying Magnet Crank Trigger Kit - 8 in Balancer - GM LS-Series OGEN.DB-30417 510 in - Duration 270/276Upgrading to an MSD Flying Magnet Crank Trigger Kit will deliver the precise and reliable signal that a high performance engine requires. This kit gives you the ability to control timing electronically through a Holley EFI ECU (or other standalone engine management system ignition controller). At the heart of the kit is the 3 wire Hall Effect Sensor that is easier to set up, less susceptible to EMI RFI interference noise, and less likely to have false