I offer four levels or "stages" of cylinder head porting. The stage of porting that best suits your application will vary based on several factors. Some of these factors include: The size of the engine, the target rpm range of the engine, and ultimately your power goals. The ease in reaching your power goals will increase with the level of porting performed to your head. Below is a brief description of the various stages of porting I offer.

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As mentioned earlier, the intake manifold is just as important as the ports in your cylinder head. As you can see from the chart below, the intake manifold can rob almost 40% of your cylinder heads intake port flow in some applications.

Intake Manifold porting options

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