I agree - you're not overinjected. In fact I say that if you are stepping up to a 150 HP NO2 shot, you'll wish you had 36#s.
Without knowing why you believe you're over injected, I'll bet your idle isn't so great and the engine runs somewhat sluggish unitl higher RPMs. This is due to your cam. The higher lift of the F303 is confusing the EEC at low RPM and idle.
What you would benefit from is a burnt chip, or better yet, a programmable piggyback computer. Keep your fuel pressure at 40 psi +/- and calibrate the EEC for the large injectors. You'll thank me in the morning.
Just my 2 cents.
