{"product_id":"holley-558-304-hei-ignition-adapter-wiring-harness","title":"Holley 558-304 HEI Ignition Adapter Wiring Harness","description":"\u003cp\u003eThe Holley 558-304 HEI Ignition Adapter Wiring Harness connects a GM small-cap HEI distributor to Holley Avenger, HP, or Dominator EFI systems. Designed as an ignition adapter harness, it provides a dedicated wiring solution for integrating the distributor with the specified Holley EFI applications.\u003c\/p\u003e\n\u003cp\u003eThis harness is identified as the Holley HEI Ignition Harness and is supplied as an individual piece. Its application-specific design helps simplify the connection between a compatible GM small-cap HEI distributor and the Holley EFI system, supporting a clean and direct installation.\u003c\/p\u003e\n\u003cp\u003eUse the Holley 558-304 when an ignition adapter harness is needed for a GM small-cap HEI distributor and a Holley Avenger, HP, or Dominator EFI setup. Confirm application requirements before installation to ensure the harness matches your distributor and EFI configuration.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eApplication: Connects a GM small-cap HEI distributor to a Holley EFI system\u003c\/li\u003e\n\u003cli\u003eCompatibility: Designed for Holley Avenger, HP, and Dominator EFI systems\u003c\/li\u003e\n\u003cli\u003eProduct Type: HEI ignition adapter wiring harness\u003c\/li\u003e\n\u003cli\u003eQuantity: Sold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOLLEY","offers":[{"title":"Default Title","offer_id":68027358707964,"sku":"HLY558-304","price":63.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0763\/8797\/5420\/files\/HLY558-304.jpg?v=1793201869","url":"https:\/\/ozkonickustomz.com\/products\/holley-558-304-hei-ignition-adapter-wiring-harness","provider":"Ozkonic Kustomz LLC","version":"1.0","type":"link"}