cracked spark plug
bad wires
bad coil
bad TPS
vacuum leak

Thanks for the reply, checked all of these I have two coils changed wires and plugs and both the TPS and MAF were swapped out. The engine was actually removed from the truck so new gaskets were installed througout. The heads were inspected, no signs of cracks of any sort, it is possible that the head gasket may have blown already if so I'll check the coolant resevior for traces of that and I'll run a compression check because haven't done that yet. Thanks, any other suggestions from anyone would be great.

__________________
1994 Ranger XLT
2wd 4.0
OIF Vet
USMC