Breakdown of Included Items

Holley EFI 556-175 Crank Trigger System Features:

• Embedded magnets and the 3/8 in. thick billet 6061-T6 aluminum trigger wheel is the most accurate way to trigger electronic fuel injection
• 3-wire hall-effect sensor resists EMI/RFI interference
• Direct bolt-on billet aluminum pick-up bracket provides rigid mounting that provides stable timing

Holley EFI 556-175 Crank Trigger System Note:

• Compatible with ATI Degreed Balancers (Dampers) 917777, 917211, or 917234 (each sold separately)
• Detailed instructions for mechanical setup for 12-1X or 12X and Holley EFI software setup

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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