Chrysler Pacifica Engine Revs Up

I Started My Vehicle Up The Other Day And The Rpms Shot Up To About 3000 And Then Would Fluctuate Erratically. I Have Attached The Codes...

Starts Fine,in Neutral Will Not Rev Over 3000 Rpm And Engine Gallops Either Too Much Gas Or No Enough Gas. Driving It Seems To Have More...

After A Full Gasket Replacement, Including Head Gaskets, We Have The Engine Back Together And Started. It Immediately Revs To 4,000 Rpms...