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Engine Works Needle and Seats

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Engine Works offers needle and seat replacements for a variety of Holley carburetors. They are the first stop for the flow of fuel coming into a carburetor—essentially, a basic valve. The seat is typically conical and the needle has a point which seals against the seat to stop fuel from entering the carb at a certain level. This prevents flooding the engine and engine compartment. Needles are available in brass or stainless steel; and seat size options vary from 0.110 in. to 0.150 in.

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