Home porting job on PI heads ???

Guys,

Ive got a set of PI heads here that i want to do a bit of a home port and polish on...

aside from removing the casting flash, is there any areas in particular that i should be looking at???, oh, and port mathing to the PI manifold

has anyone ever done this and taken pictures along the way ?

cheers

EDGE
 
Here are a set of 2v heads a buddy did while practicing at home with a die grinder. I think those flowed 200/170
chambers5.jpg

chambers3.jpg

portwork3.jpg