If you are going blower and changing the pistons then go PI head. To fix the NPI exhaust port takes a lot of work. For big blower NPI heads I even install larger seats to fit a mega exhaust valve and get it flowing what a regular PI head port job does.
See this is where i'm torn I could go pi head but i'm not sure which direction I want to go to achieve my goals. Keep my npi motor and npi heads or use a 01-04 entire engine setup and forge my bottom end. What should I do fellas?