31 Gm Engine Fuel Line Diagram Gracie Kemmer 28 Aug 2023 47-55.1 efi fuel line routing Routing efi regulator bypass rails 47-55.1 EFI fuel line routing - The 1947 - Present Chevrolet & GMC 47-55.1 EFI fuel line routing - The 1947 - Present Chevrolet & GMC Check Details ← 302 Engine Diagram Cam 302 Ford Distributor Cap Wiring Diagram →