Port velocity average target fps?

What average target fps should you be shooting for and how much for different levels of builds like daily driver street to like pro stock?

Is there kind of formula or guild or rule of thumb for target fps?

So far mainly from Speier Racing Heads that he seem to target 310-350, he stated 350 fps is like a a Pro Comp engine and 330 fps for bracket racing didn't say what 310 fps was for.

How to figure needed cfm and csa was given but not target fps (velocity),Formulas given.

Min CSA = b x b...

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Author: admin