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I have a stock 05 gto. Installed a Procharger kit p1sc with dw300 fuel pump and 4”pulley. Dynoed at 475 rwhp. Would like to change pulley to get 8-9lbs of boost. What size pulley and injectors. Recommendations? Thanks
 

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80lbs would be more than enough for pump. So i would do around there. Youll hit a wall quick with that pump added with a stock regulator and no reference. But a quality tune always helps.
Using 1000cc's on my ls1 but at 14-15lbs on E. Swapping to 1300's here soon.
 

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Siemens 60's are what I ran on my '04 with P1SC @ 10 psi, cam, heads, Vic Jr. Still had room to grow.
 
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