drive line angles

I have an 85 nissan 720 that I am setting up with a 350 v8 and nissan 240 irs.. My question is what degree should i set up the motor and the chunk?? I have heard all kinds of ideas. everywhere from 0 - 3 degrees.. what is ya'lls suggestions??

WOW!!! Thanks for the help guys!!!!!

i dont think you can have it at 0 degrees. as in both perfectly straight to eachother. atleast thats what i was told. i did a v8 swap in a 56 chevy truck and i dont remember what we set it at but i know it wasnt 0. hope that helps.