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Do ported heads, intake or exhaust manifolds require a change in carburetor jetting?

April 26, 2017Carburetor exhaust Heads intake jetting manifolds ported require

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Do ported heads, intake or exhaust manifolds require a change in carburetor jetting?

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Generally, yes. A larger jet size is usually needed for best performance. Its best to start slightly rich and lean the air/fuel mixture till best performance is obtained.