Fuel Injection Kit

Add to Favorite Sellers. Holley EFI 550-703 Big Block Chevy Multi-Port Power Pack Kit for Standard Deck, Peanut Oval Port heads. Perfect way to finish out an EFI ECU kit. Complete with intake, throttle body, fuel rails and sensors. Enjoy vastly improved throttle response and idle control. Customer Service & Feedback. So we have a chance to make it right