12-1X Crank Trigger Kit - 8 in., Hall Effect for Big Block Chevy 556-170

The Holley EFI 12-1X Crank Trigger Kit - 8 in., Hall Effect for Big Block Chevy (part number 556-170). For Big Block Chevrolet

Features:

• Most accurate way to trigger your electronic fuel injection (EFI), can be installed as 12-1 or 12x
• Powerful magnets embedded in a 3/8-inch thick billet 6061-T6 aluminum trigger wheel
• 3-wire Hall-Effect Sensor that is not easily susceptible to EMI/RFI Interference
• Engine specific kits include a direct bolt-on billet aluminum pick up bracket
• Rigid mounting that will not flex and cause timing fluctuation
• Easy to install much like traditional MSD Crank Trigger Kits
• Included installation instructions cover mechanical setup and provide step-by-step Holley EFI Software Setup

Specifications:

Emissions: For racing use only. Not legal for sale or use on any pollution-controlled motor vehicle.