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Vacuum pump on your Indian

What pump is that you are using? Noticed the Alt in the AC comp. position and vac in the alt. position. How much vacuum you running? That a nice 274ci. setup
 
What pump is that you are using? Noticed the Alt in the AC comp. position and vac in the alt. position. How much vacuum you running? That a nice 274ci. setup
it is an Aerospace pump, the only way I can get away with using a serpentine belt with it is because of the small crank pulley. I have to double check but I think I need to regulate the vacuum to about 8" @ wot.
 
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