engine dies after accelerating rapidly...

i pushed it past 4k rpm on 3rd and then proceeded to put it in neutral and pump the brakes midly to slow down. next thing i know its hard to brake and steer, and i lost all oil pressure, my engine stalled after coming back down from 4k in neutral while pumping brakes. it starts right back up if i crank it while moving, no hesitation it just dies when i accelerate alot and then let it coast any suggestions?

i dont think ive ever had any problems with the idle, but i will check it either way. i forgot to mention that this just happened after i removed the air silencer and took it down a straightaway, ive read that too much air coming in makes the MAF freak out although i can remember this happening to me BEFORE i removed the air silencer, but that was going up and down some hills with good amount of speed.

btw, im not sure if this is related or abnormal, but my idle will hover around 950-1K rpm when cold, and will finally die down to 700-800 if i give it a little tug. maybe it is the IAC......