someone with a ppe cp3 kit, need idler pulley size please!

I just took my PPE hose adapter pipe off and bought a flexible stainless radiator hose kit from Summit. I didn't like that I couldn't run the valve cover that I made with their set up so I went that rout and it worked out good. And like Ty mine was one of the first kits and used the stock pulley.
 
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