Proflow Fuel Pressure Gauge Adaptor Fitting, Suits GM LS Engines, AN4 Female to 300 to 400 series Proflow's aluminium V-belt pulleys are

Proflow's aluminium V-belt pulleys are precision CNC-machined to run perfectly true

These shut-off valves' large handle makes them easy to use

AF2296-2010 Vehicle Application (Z516):

Part Number : RTS-U1800

Proflow Engine Mounts Aluminium

Proflow Fuel Pressure Gauge Adaptor Fitting, Suits GM LS Engines, AN4 Female to 300 to 400 series Proflow's aluminium V-belt pulleys arePart Number : PFE147 02BK This adaptor fitting allows you to adapt a fuel pressure gauge directly to the factory GM LS fuel rail. It screws into the end of the fuel rail (with the removal of the schrader valve) and converts it into a 1 8'' NPT for a gauge of your choice to screw into. It can also be used for other universal applications.