joc61

so i have a couple problems that stumped me. and they may just be related for all i know. one would be a boost leak, but this isnt a normal boost leak. i can pressure the system up to 20 psi in my garage without the normaly boost leak sound. it only happens when im wot on the road when my engine is torqued over. which leads me to my second problem. when my car is in my garage and i pressure up my system i get air flowing back into my intake (i can hear it coming out there) i originally thought it was my bov and so i unhooked the output of the bov and blocked it but i could still hear air coming through the intake... is there any other way the air could be getting back to the intake?