Heading for MOAB on Tuesday, good 1000 miles or so each way for me... Anyway, vortec 454 in my 96. Today, along with the 3000 other things to do to it I'm going to do oil, filter, fuel filter, pcv valve, air filter, and I'm throwing in some fuel system cleaner. It runs fine and drove 350 miles the other day to pick up a new tranny so I'm not all that worried. Just curious as to what some of you do before long trips... I just did the plugs and wires and cap about a month ago.