This fuel rail kit is purpose-built for the Holley GM 2x4 dual-plane manifold, pairing LS pushrod engine technology with the multi-carb look of the muscle car era.
Specifications:
- Engine: GM LS3/L92
- Color: Black
- Material: Aluminum
- Fuel System: EFI
- Grade Type: Performance
- Product Type: Fuel Rail
- Part Number: 534-220
Fits Holley intake manifolds #300-134 and #300-135, used on GM LS Gen III or IV engines with LS3/L92 rectangular-port cylinder heads. The LS engine architecture does not use an intake-mounted water neck or distributor.
FAQ
Which Holley intake manifolds is this fuel rail kit designed for?
Specifically Holley part numbers 300-134 and 300-135, 2x4 mid-rise dual-plane intake manifolds.
What engines does it fit?
GM LS Gen III/IV engines with LS3/L92 rectangular-port cylinder heads.
What color are the rails?
Black.
Does the LS intake use a water neck or distributor mount?
No, the LS engine architecture doesn't use an intake-mounted water neck or distributor.

