Porting Heads

["Scott Janzen" <s.janzen@comcast.net>]

I'm building up a new engine for my vintage race GT6 MkII.  Any comments on
improving the porting on my own, versus having someone with more experience
and/or a flow bench do it?  I've read through Kas' guidelines, have the air
tools, and in fact did this years ago on a motorcycle, but that doesn't make
me an expert.

Also, should I be planning to mill the head or block to increase
compression?  Planning on using flat top Venolia pistons.