Holley 2-Piece Pontiac Style Valve Cover - Gen III/IV LS - Natural POWER STROKE Increases both low and high-speed

Increases both low and high-speed compression levels up to 25 percent

there's no substitute for Speed Demon

and idle lift pump pressure

Higher lift pump pressures at idle will require more amperage at the top of the table (low desired fuel flow) to keep the rail at it's target pressure

Please note: The Quick-Turbo will not fit 2001-2002 models with the HY35 turbo (automatic transmission

Holley 2-Piece Pontiac Style Valve Cover - Gen III/IV LS - Natural POWER STROKE Increases both low and high-speedEach 2 Piece LS valve cover set includes a low profile billet oil fill cap, 2 billet simulated fill cap assemblies, hardware and spacers for mounting both versions of LS coil bodies, and dress up hardware and rubber grommets for the coil covers. These modular LS valve covers are available in 3 custom finishes: natural cast, polished, and satin black