Manifold pressure @ full load & speed = 34.0 +/- 3 in. Hg.
Manifold pressure @ torque converter stall 986 +/- 65 rpm = 27 in. Hg.
Hi Dalton808, You are correct, that D7E is the 160hp version as the 180hp version began at 48A6883. I don't know your level of mechanical expertise so you might already know this, but please note that there is a difference between in./Hg.(inches of Mercury) and P.S.I.(Pounds per Square Inch).
You might want to change your profile to allow your town or your general location to show. This will help others to help you without having to ask your location.
Craig