Mopar small block fan routing diagram

gonna have to agree to disagree. i've used the double many times when i couldn't find the single and it aligned just fine. never threw a belt or chewed up a belt. they line up just like the single pulley.

so back on track on what the OP asked. look at the pics i posted. thats the proper way to run your belts. its also the proper pulleys you need to find(new or used),and you'll also need the proper alt bracket if you don't already have it..