What kind of performance gains will you be able to notice with ported polished gn1 champion heads apposed to not having them. I was debating on getting them but is it really worth it? Right now I am running a TE44 turbo pte stock location intercooler and a 2800 stahl convertor with alky inj and mototron 60's. Would I need to upgrade the turbo or not? Any suggestions.