Fits Demon Race, Speed & Road Demon Carburetors


Fits Holley model 4150 carb, all double pumpers and square flange with metering blocks on both primary and secondary.


Fits Holley model 4160 carb, 3310, square flange Holley with primary metering block and secondary metering plate.


Gauge Only



Mr Gasket Fuel Pressure Gauge 3/8" Inlet & Outlet


Fuel Pressure Gauge
  • 3/8" Inlet & Outlet
  • Liquid Filled
  • In-Line Adapter
  • 1-1/2" Diameter
  • Full Sweep
  • 0-15 psi
  • $41.99
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