So I have the whole motor apart, put in a decent size hydraulic roller. Figured I might as well clean up the ports a little. The heads are 185cc performer RPMs. Is this light porting going to make any kind of difference?





I used 80 and 120 grit rolls on the left port.





And the Pocket,
not cleaned up:


Cleaned up:

 

I would recommend that you find a machine shop in your area and have the runner you ported flowed on a bench. Compare that to an unported runner.