Holley Fuel Rail Kit - For HLY300-137 SF523 SHORT X-PIPE W/CONVERTERS-USE WITH FULL

SHORT X-PIPE W/CONVERTERS-USE WITH FULL LENGTH HEADERSWhy follow when you can lead

Fits both Small and Big Block Chevy

Nylon tubing

Aggressive Sound:

Clutch Disc Float Plate

Holley Fuel Rail Kit - For HLY300-137 SF523 SHORT X-PIPE W/CONVERTERS-USE WITH FULLEFI Fuel Rail Kit for HLY300 137 Single Plane MidRise EFI LS Intake Manifold which fits all GM LS Gen III or IV engines equipped with LS1 LS2 LS6 style cathedral port cylinder heads. Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley