Instructions for Edelbrock Carburetor Tuning
With two gold-colored adjustment screws placed in front of the carburetor barrel, the Edelbrock carburetor is one of the simplest carburetors to tune. Adjusting the device can be done in just a few minutes with a screwdriver and vacuum gauge. The best setting for achieving the most fuel mileage and power in the motor is between 550 and 650 rpm. You can save time and money by tuning the carburetor on your own.
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Instructions
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1
Remove the wing nut off the top of the air cleaner and lift the air cleaner assembly off the Edelbrock carburetor before attempting to tune the device. Start the motor and let it idle for a few minutes to warm up.
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2
Locate the two adjustment screws on the front of the carburetor, just below the nameplate. Turn the adjustment screw on the left counterclockwise with a screwdriver so it is completely open without coming out of the carburetor.
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3
Adjust the screw on the right by turning it all the way clockwise with a screwdriver until you feel a slight resistance. Do not over-tighten the adjustment screw.
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4
Turn the adjustment screw on the right counterclockwise two and a half complete turns. Adjust the screw on the left by turning it all the way clockwise until you feel resistance, being careful not to over-tighten the screw and turn it back, counterclockwise two and a half complete turns.
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5
Remove the rubber vacuum hose from the front of the carburetor near the base and attach a vacuum hose to the carburetor port. Turn both adjustment screws, alternating back and forth until they both read between 550 and 650 rpm on the gauge.
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6
Take the vacuum gauge off the carburetor and reattach the rubber vacuum hose. Attach the air cleaner assembly to the top of the Edelbrock carburetor with the wing nut and turn the engine off.
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Tips & Warnings
Always be careful of moving engine parts while tuning the Edelbrock carburetor with the motor running.
