Billet Bypass Fuel Pressure Regulator Kit 4.5-9 Psi W/Fittings & Gauge-12-841KIT throttle-bodies By simply changing the advance

By simply changing the advance springs and stop bushing you can tune in 24 different advance curves

For Demon Style Float Bowls (9/16 x 24 Thread)

4 V8 2002 - 2008 Ford F-150 XLT 256/4

Year Make Model Submodel Engine Size 1981 - 1983 Jeep Cherokee 1981 - 1983 Jeep J20 1981 - 1985 Jeep Scrambler 258/4

Billet Bypass Fuel Pressure Regulator Kit 4.5-9 Psi W/Fittings & Gauge-12-841KIT throttle-bodies By simply changing the advanceHolley Billet Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12 841 regulator features a billet aluminum body and a black finish for corrosion resistance and good looks. The regulator contains 3 8" NPT in out ports, a 3 8" NPT return port, a 1 8" NPT gauge port. In addition, 3 adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware