Me and Clark aka (Mad scientist at JWT) messed with cam timing years ago.. On our VVL Stock engine N1 Cams,intake manifold and TB .. We found the more overlap we put the more top end HP was made wi...
I saw someone flow bench STIs and they only moved 503cc ... Also if you can IMO go with a MAP Sensor.. It too is a 5v sensor like a MAF and you just invert part of your table and it should work fin...