Help in understanding numbers ! Engine is ISC350 and I have a VMSpc installed. While on the road at 60mph and 1600 rpm the battery voltage would drop to 12.6-12.8 then rise to 14.1. The oil bar gauge dropped to yellow on the VMSpc at a different time (50-60psi at road speed & 21-25 at idle normally). Also, what are the normal oil pressure parameters for this engine at...