One of my friends just installed an XP cam and it seems like he is seeing some unusual numbers. His mod list is: XP cam, 2.8", SSIC, 105# springs, modded retainers, pacesetters, N*, FWI. His max boost is currently 5 psi and his vac at idle is 10 in HgIs it just me or are both of these numbers very low? And what would be causing this? a bad vac leak?