Review on Holley HOL 12-804 12-804 Fuel Pressure Regulator: Optimal Performance and Fuel Efficiency by Patrick Stephani
Good quality. Difficult to assemble.
Works exactly as advertised. Installation was complicated by the lack of a gauge fitting, which meant an extra fitting had to be fitted somewhere between the regulator and the carburetor to mount a gauge. You'd think adding a pressure gauge port to this thing would be easy enough. There are no threads for fastening screws in the housing. I couldn't get the included self tapping screws and mounting screws to work and had to hand drill holes to install them. Kinda disappointing.
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