Re: Newbie...4.6 help needed
There shouldn't be a filter of any sort on/in the MAF. Also, the chugging you describe may be an ignition miss. With 10-year old original spark plug wires, this is a definite possibility.
Note that the original style spark plug boots (including the 1994 MY) were known to fail when shorted out from the spark burning through the plastic extension tube where the boot's terminal plugged onto the spark plug.
Note that the newer style (ie. 1997 MY) spark plug wires are significantly improved over OEM 1994 MY wires.