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        Holley Fuel Pressure Regulator (1-4lbs) The regulator's job is to keep the pressure in the fuel system at a constant psi (Weber carbs work best in the 2.5-3psi range). Your fuel pressure regulator controls the amount and speed at which fuel is used by...$69.58 - 
            
        
    
Aeromotive Liquid Filled Fuel Pressure Gauge (1.5" Diameter / 0-15 Psi) These Premium Fuel Pressure Gauges are for Carbureted engines that run higher fuel pressures. What makes these gauges unique is that relief valve that relieves all the pressure...$53.45 
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