am removing the compressor unit from my '74 charger (small block)how do i route/re-route the belts? do i need to add a pulleywheel? if so, what kind?  any help appreciated!   rick  

You either get the non ac pulleys and alternator brackets or make your own brackets with idler pulley to take the slack using existing ac belt.
Did the same thing with a 68 fury III 383 mag w fact dana 4.10 & police suspension.