Not sure if it is just like the P, but if so the gov. spring rate changes the arm travel up the plate which also effects the fuel curve. I know this because mine is kindof screwy with shimmed springs and a stock plate. It fuels real hard lower RPM and then gets a dead pedal where you get no more fuel untill it revs way on up. After finally finding someone to explain the whole deal I found I just need a plate and spring set matched for eachother. Most will say the fuel plate is all that matters for fuel curve, but this is far from true.So a 'reprofile' would alter the fuel curve then?
Dont get me wrong it is MUCH more fuel and power than stock, but it kindof stalls fueling around what should be the peak power point.