A Lot of holes there. Maybe that was after Turbo? Still a lot of HP for a small motor. What RPM would you be turning? I am always skeptical myself, and never up for forced induction.
I just chatted with a friend that is a expert about turbos. He simply explained if you trying to keep it in the stock rpm range, don't port the heads, If you are going for maximum horsepower/rpm then they need to be ported.
