Edelbrock single and dual regulator kits are designed for use with Holley square bore or 4500 Dominator series dual-feed carburetors on alcohol, turbo, and supercharged gasoline engines. They'll allow you to adjust fuel pressure from 4 1/2 to 9 psi, and are recommended for use with either Edelbrock racing fuel pumps or any high-output fuel pumps. The kits include fittings, a mounting plate, fuel line, and single or dual regulators.

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