driveline angles?

[pitbull]

im currently in the middle of swapping out my stock 350 and 4 speed for a 454 and th350
im using the original motor mounts adn cross member and its a long bed 2wd 1971 c10
my question is what are correct driveline angles for this two piece drive line
with the engine and tranny in i got 9 degrees down at the tail shaft and 8.5 degrees up at the pinion with the suspention loaded, and i need to make sure i dont have any vibrations

thanks for any and all input