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would you be able to hear a vacuum leak if you had the hood up...i can hear a air kinda of sound coming from the driver side of the engine close to the firewall, i know the superchager has a blow off kinda thing i think but do you think it might be a vacuum leak?
so i did the propane test and the engine didn't rev...the noise is definately coming from close to the firewall on the driver side cylinder bank, is the any valves on the supercharger near there that could be releasing air?
also now when i turn the ignition off i continue to hear a faint hiss for a couple of seconds then it goes away, any ideas?