Well since i pulled my head off i'm going ot polish it up and then i started thinking about anti-reversion chambers. now for the intake side would i mill some material off the head so that way the port on the head is bigger then the port on the intake manifold. and then for the exhaust side would i mill out the flange on the header?

then another question. wouldn't these anti-reversion chambers cause turbulance in the air coming in as it goes from a smaller diameter to a larger one. any suggestions welcome. TIA

 

You might get more detailed responses to this question in the Tech forum.

Good luck, though.