cylinder head flow

Harder

Member
We all know the exhaust outflows the intake by a bunch, my question is, is the exhaust sized appropiately to the motor or is it a restriction. Does porting the exhaust actually help or does it make the percentage of intake to exhaust even more
 
You can always improve the flow on the intake. A good exhaust should also be pulling some air and gasses out of the cylinder. If you run your finger down the head you will feel a edge. Shave that edge down until its smooth.
 
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