and theres no easy way around the pistons unless u have a 7 rib ge. the big end and gudgeon pin are different sizes between 3 rib and 7 rib ges.
Have a look on club4ag.com there are a few guys running setups using the standard na ecu in turbo applications. They use GZE injectors and 4EFTE map sensors. They claim this achieves good A/F ratios and good power. I am actually going to try this on a car that Im currently working on, get it dynoed ans see the results for myself.