[KingLT1]

I agree that it would likely take a seconday HPFP to fully utilize the 90's. I believe you still need one to max the +65's. This is based on running full pump E. On E60 the +65's, LPE HPFP, and a 32% lobe is enough DI only for 1000-1100whp. Not sure how far you could go with a 42% lobe. My guess is this is when you might finally need more octane then E60 provides. I haven't ventured into those waters yet so only speculating.