Radium Engineering Fuel Pulse Damper - XR 8AN ORB - Swivel - 20-0777

Extended Operating Range: 40-105psi

Extended operating range should be used on vehicles with a base fuel pressure above 70psi and up to 105psi. If fuel pressure is static (does not fall or rise with manifold pressure) then no vacuum reference line is needed. If fuel pressure rises or falls lower or higher than the operating range, a vacuum line is needed.