Stutters at full throttle, ?????HELP

[429mustang]

There's no white smoke, a little black but the plugs all looked good, one was a little dirtier than the others but nothing out of the ordinary. Everything in the ignition is ok, each cylinder is getting spark. I checked the sensor with an ohm meter today to see if the gauge was messed up or if the oil pressure was dropping when it said it was, and the ohms did drop to around 0 (I think .6 or around that) when the gauge showed 0 (I waited for the gauge to show zero then unplugged the wire from the sending unit and checked it with the meter). Somehow I have little to no oil pressure all of the sudden, I just put in new bearings last year along with a number of other internal parts which are all probably getting worn now. The only other thing I can think of that might drop oil pressure along with affect how the motor runs would be an excessively lose rocker/rockers (proform roller). They are a little noisy, so I'll check that out in the morning and hopefully one loosened up a bunch. Does that sound like a reasonable assumption? Eithre way, I think I'm gonna see if someone I know can help me get a loan and find a nice 99-02 GT or Cobra for a good price (Black or dark Grey w/ blackor grey interior, hardtop, 5spd), my credit is pretty sh*tty though. I may see if this one guy can find me one at an auction that he buys cars from for his car lot and get me a deal. We'll see, I'll see what I can find tomorrow with my van.