Symptoms of blowing open the valves

[MikeS1]

Just curious if this would be a symptom, at 60lbs of boost with my foot to the floor the truck pulls really hard and then loads up or seems like it loads up, but as soon as I back off the throttle maybe a 1/8 to a 1/4" it takes off again; it is still accellerating strong but when you let off that little bit boy it takes off. I need some aftermarket springs anyway and am curious if this may be the reason. Thanks, Mike

 

[hensign]

Is it possibly defuelling as it reached 26-2700 rpm? Sorry I am not realy into the hot rod stuff it just sounds like it.....