Max Pressure Regulator This regulator is packaged with all Holley Max-Pressure Pumps P/N 510-12-802-1 and is also available separately. It can be adjusted to regulate fuel pressure from 4-1/2 to 9 psi. Two regulators are recommended for dual 4-bbl. applications. Can also be used as a high pressure by-pass. 3/8'' NPT.
	Standard Pressure Regulator Recommended for applications where a low pressure, but steady flow, is required. Factory adjusted to 2.7 psi and can be adjusted with a range of 1 to 4 psi. Accepts 3/8'' NPT fittings.
	Big-Port Regulator Die cast aluminum regulator is adjustable from 4-1/2 to 9 psi. Designed with one 1/2'' NPT inlet port and two 1/2'' NPT outlet ports with minimal flow restrictions. Includes mounting hardware. The least restrictive, highest flowing production regulator for a single 4-bbl system - race or street.