HPFP upgrades at least the ones I've seen for the MS6 only help to keep the pressure high under WOT when the stock internals start dropping due to an inability to keep up with demand. I'm not sure that just upgrading the internals to keep the pressure up is going to do anything if high pressure alone is not the issue. I'm definitely just thinking out loud and do not claim to know exactly how it all works. But to me it seems that if it's purely a volume issue, water/methanol, straight methanol, E85, auxiliary or the combination might be the only thing we can do to overcome the fueling hurdle. I think I'm going to email Torrie to see where he stands on the fueling questions we have, since we got Livernois' take on the issue.