Here you go!! A picture says a 1000 words
Yeah, you need to check the angle when the car is level with no jacks, if that's what you've done.
Those measurements you gave equate to about a 15 degree pinion / driveshaft angle which is HUGE!! You only want about 2-3 degrees otherwise you'll get lost of vibes etc. How does it feel when driving normally and under load?
Take it to Truckline or Hardy Spicer (driveshaft specialists) and they'll measure your angles for free over the pits.
Other info that's important is that the diff pinion angle must be the same as the gearbox yoke angle. The diff pinion and gearbox output shaft must also be parallel. eg: diff points up 2*, then gearbox should point down 2* etc. This allows the unijoints to function correctly.