"What do you think the huge ports and valves will do to the engine characteristics?"
I am no expert Brian, but I would have thought the big ports won't help your pre boost air speed. Another way of saying more lag than what you would have on a stock head.
Given that the big heads will be on a mild(not race car) CIS set up and relatively small turbo, you may well be better off with small mods to your stock heads.
Then again , they may be fine.
Hope someone that knows more than I can help.
