47-55.1 Driveline Angle?

[Rabid Anti-Dentite]

So I installed an LM7 5.3 with a 4l60e into my S-10 frame using Code504 mounts, and now I need to install a transmission crossmember. How much angle do I want on the engine? I am using the stock S-10 rear end with 3” drop blocks. I will be having a custom driveshaft made. If I position the motor at 0 degrees, I will have a little bit of an angle on the drive shaft. Is it more important to have a proper engine angle or drive shaft angle? Or does it really even matter?
Thanks for the help!