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Discussion Starter · #1 ·
when i bought my car it had the roush supercharger on it. i installed a good boost guage but when i am at WOT it only shows about 2 psi. i did a leak check on the engine does not have any vacuum leaks. can someone with a roush supercharger give me there input.
 

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The roushcharger puts out 5psi on the stock pulley, so there probably is a leak or something in the installation of the boost gauge.
 

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change to a whipple :)
 
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