Holley Fuel Rail Kit - For HLY300-137 SF523 LS6 Camshaft

LS6 Camshaft

Jackets have many features including multi-needle overlock stitching design for exceptional seam strength and a two-way brass Nomex-backed zipper with a double overlap for a secure front opening

Aggressive Sound:

Dirt Works upper

NPT Adapter Fittings

Holley Fuel Rail Kit - For HLY300-137 SF523 LS6 CamshaftEFI 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