Holley LS Valley Cover - Trussed GBCSE Down-leg boosters for improved fuel

Down-leg boosters for improved fuel signal

3 AN Straight Female to 3/8-24 in 90 Degree Inverted Flare Male

These springs will lower the front of your S550

Fully SFI approved as well

Holley LS Valley Cover - Trussed GBCSE Down-leg boosters for improved fuelHolley's new trussed LS valley covers are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern trussed design, these LS valley covers are the perfect upgrade for your LS engine if you are looking for a subtly custom touch. These valley covers are machined smooth on the underside, allowing for the elimination of Displacement On Demand (DOD), and instead feature an ample gasket