The motor is stock and i turned up the boost today to like 9-10 lbs. and i drove it down the street a few times and it was fine the one time I heard the pop off valve go off and now it will rev fine in neutral but when in drive as soon a i give it any gas under load it almost dies and wont go any where and if i unplug th knock sensor it I can drive it up till like 2800-3000 rpm then it boggs has this happened to anyone else ?

 

Maybe turn the boost back down???

 

when it did it I put everything back to stock so boost is back down to 6lbs not that itgets there and i took of the boost controller it will only go to like 3lbs before it cuts out.

 

sounds like you probably popped a hose or something loose creating a leak under pressure.