Requires use of F.I. rated fuel bottle or equivalent bottle with built-in fuel return feature and 5/16ö F.I. high-pressure fuel line (5/16ö high-pressure fuel line for use with fuel injection applications) Easily adjustable fuel pressure from 0-150 psi and is regulated through easy-to-understand controls Controllable fuel supply for servicing fuel-injected models Large dial gauge displays fuel pressure on front. FUEL INJ PUMP ADJUSTABLE