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64 Nova SS
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Pulley selection and alignment can be confusing since they vary. It looks like you have a PS Pulley with minimal offset distance (0.92") from the front of the pulley to the center of the pulley groove. A pulley with a deeper offset distance (1.5") should give the proper alignment. Summit has several pulleys reasonably priced but they don't all give the offset distance, so you might have to ask for that measurement.
 

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64 Nova SS
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51 Posts
So I think the double pulley will work, but I think I have the wrong from pump bracket I think I need a 343301 bracket.
Yeah, the double pulley should work and will be needed if you need to route another belt across the PS pulley to your alternator or other accessory. But they usually cost more than an single pulley.
Not sure about your bracket, couldn't see much of it in the photos. Usually only need to replace the bracket if the one you have isn't fitting properly or if it's is causing interference with something else. If that's your case, then yes it will need replacing.
 
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