Overview Reviews Product Description Designed to plug and play with HyperSpark distributors and Holley EFI main harnesses with an ignition connector, such as part number 558-104. Features: Used to run a "timed sequential" fuel strategy, with Holley EFI V5 Build 160 or Later, or Terminator X. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Holley Holley 558-323 HYPERSPARK IGNITION ADAPTER Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments
Quick view Details Holley EFI 558-201 LSx Injector harness for EV6 injectors MSRP: $172.00 Now: $153.95 Add to Cart Quick view Details Holley EFI 558-102 LS1 Main Harness LS1/LS6 for HP and Dominator EFI MSRP: $627.00 Now: $563.95 Add to Cart Quick view Details Holley 556-151 Sniper EFI Hyperspark Ignition Box MSRP: $377.00 Now: $338.95 Add to Cart Quick view Details Holley 558-128 Ford 87-93 Engine Harness - extra length MSRP: $559.00 Now: $502.95 Add to Cart
Quick view Details Holley EFI 558-102 LS1 Main Harness LS1/LS6 for HP and Dominator EFI MSRP: $627.00 Now: $563.95 Add to Cart Quick view Details Holley 556-151 Sniper EFI Hyperspark Ignition Box MSRP: $377.00 Now: $338.95 Add to Cart Quick view Details Holley 558-128 Ford 87-93 Engine Harness - extra length MSRP: $559.00 Now: $502.95 Add to Cart
Quick view Details Holley 556-151 Sniper EFI Hyperspark Ignition Box MSRP: $377.00 Now: $338.95 Add to Cart Quick view Details Holley 558-128 Ford 87-93 Engine Harness - extra length MSRP: $559.00 Now: $502.95 Add to Cart
Quick view Details Holley 558-128 Ford 87-93 Engine Harness - extra length MSRP: $559.00 Now: $502.95 Add to Cart