GT28RS installed. No boost in first, only 4psi in other gears

Matrix

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Silver MSP
Howdy:

i started my MSP today for the first time today since installing my GT28RS. She started just fine and idles very smoothly at -21 vacuum. But for some unknown reason, she won't build boost in 1st gear and will only make about 4psi in other gears. Also, my BOV doesn't sound between shifts. the more i think about it, it sounds like maybe one or more of my intake couplers is holding at idle but leaking when boost is produced. I am going to check all my intake couplers and clamps, but any help would be appreciated. All other mods are in my sig.

Thanks!
 
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