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Holley EFI 556-170
8-Inch 12-1X Crank Trigger Kit, BBC, Hall Effect; For Big Block Chevrolet
Holley EFI 556-171
7" 12-1x Modular Crank Trigger Kit; For Small Block Chevrolet
Holley EFI 556-172
6.56-Inch 12-1X Crank Trigger Kit, SBF, Hall Effect; For Small Block Ford
Holley EFI 556-173
7-Inch 12-1X Crank Trigger Kit, Coyote, Hall Effect; For Coyote, Requires Custom Ignition Type in Holley EFI Software.
Holley EFI 556-174
8-Inch 12-1X Crank Trigger Kit, LS, Hall Effect; For Gen III and IV LS
Holley EFI 556-175
7.25-Inch 12-1X Crank Trigger Kit, LS, Hall Effect; For Gen III and IV LS
Holley EFI 556-176
6.56-Inch 12-1X Crank Trigger Kit, LS, Hall Effect; For Gen III and IV LS
