so I checked my voltages and need an opinion.

5.9 magnum. not sure which amp the alt is.
running the solid state 1 field voltage reg.
grounded the other field on the alternator.

battery voltage reads around 14.8 at idle.
Voltage reg sensing voltage reads around 14.5-14.7
The back of the alt jumps around 14.8 to 15.

Idle speed is about 800 rpm.

AT around 1k rpm the alt evens out and stops jumping around and sits at 14.5 with the same .2 drop from the battery to the vr.

Would you say it is the VR or just low rpm for the alt? no idea on the mileage on the alt. Jy replacement.