I've noticed the other day when in my car for over an hour... if i try to reach full boost, but car fall flat on its face when in full boost... I thought maybe a hose popped off and caused it, but it did not....
i remember getting back in the car.... going into slight boost (5-7 psi) and my car was bucking like crazy so i let off the throttle.....

anyone else experience this when driving for a while?

 

check your plugs, cap and rotor. then chech the gap in the plugs.
check your fueling if it's flooding this could happen. if it's not getting enough fuel this could happen (too small fuel settings, clogged fuel filter, bad pump.