84 300zx super rough running

[jjk_52]

Hi, i just bought my 300 and yesterday i was cruising the highway at 160kmph and all of a sudden the car lost all power, and it sounds like its only running on like three cylinders. I only had it a few days and before i got it it had been in storage for a year. I checked all the obvious sruff like filters plugs wires etc and it seems all fine. Anyone have any ideas? This is my dream car and i soent every dime i had buying it now i dunno what to do. It n/a auto if that helps. With the vg30e i think.