needing some pulley alignment help

[jerry73]

My problem is simply this.....the truck squeals like hell and its embarrassing to drive around because the squeal never stops and it is extremely loud....the motor in the truck is out of a 91 and its a 454 but the PO ditched the tbi and put a carb on...the truck is a 78 and used to be a diesel....I know why it squeals but I don't know what to do to fix it....the 91 motor had a serpentine belt system but the guy rigged up the old diesel v belt stuff because it was easier?....anyways u was looking for some opinions on what to do? I thought of just putting all the serpentine stuff on but can't find the parts...any ideas?
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