I can not use a stock TPS or IAC due to it being a mercruiser intake. GM built intake and sensors but designed specifically for Mercruiser racing. But I am thinking about having an adapter plate made to use a 102mm LS style throttle body and seeing what it would take to switch to speed density from mass air. This build has definitely taken on a life of its own. And with that comes a lot of unexpected cost. But in the end I will have a fun one of a kind build. I am leaning to tuning it my self, waiting to hear back from Black Bear Performance.