Mr. Gasket Phenolic Carburetor Spacer - 1 Inch - Open Center - 3405 4wd-switches 6 V8 1999 Ford F-150

6 V8 1999 Ford F-150 Lariat 281/4

7 V8 1999 GMC K1500 350/5

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7 V8 1975 - 1986 Chevrolet P30 350/5

Mr. Gasket Phenolic Carburetor Spacer - 1 Inch - Open Center - 3405 4wd-switches 6 V8 1999 Ford F-150Overview: This 1 inch tall phenolic thermoset plastic spacer insulates your carburetor against manifold heat keeping it cooler and helps prevent fuel percolation (also known as vapor lock) in hot weather. This can also allow for a denser fuel mixure to help increase performance in some applications, as well as provide additional plenum volume. Open center design fits Holley 4150 4160 4 barrel carbs as well as most Carter and Edelbrock models with a