Holley EFI Cam Sync Kit - +.400" Raised Cam - BB Chevy H77403FXL 1 Way Bearing

1 Way Bearing

Nylon Brake Line

Useful for Low Rear End Gear Ratios

Whether using on the street or on the strip

Rubber Coated Aluminum

Holley EFI Cam Sync Kit - +.400" Raised Cam - BB Chevy H77403FXL 1 Way BearingA cam sync signal is required to run sequential fuel injection. This tells the ECU which cylinder is cylinder #1 (or the first cylinder in the firing order as entered in the software). These kits were specifically designed to provide a "plug & play" cam position signal to Holley EFI systems, although they may be used with any EFI system which can read a digital, square wave input cam signal. They are intended for use with Big Block Chevy engines with