Add to Favorite Sellers. Holley 12-842 HP Billet Carbureted By Pass w/ Idle Bleed Fuel Pressure Regulator. Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI with Idle bleed; Holley® Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley®. They are precision machined from 6061-T6 billet […]

Add to Favorite Sellers. Holley 12-842 HP Billet Carbureted By Pass w/ Idle Bleed Fuel Pressure Regulator. Street/Strip Carbureted Applications Two Port Adjustable from 4.5 to 9 PSI with Idle bleed; Holley® Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley®. They are precision machined from 6061-T6 billet […]