Ok soo i need to do some maintenance stuff and a little modding together, soo i want to replace the spark plugs, what are some good spark plugs like platnum ? And also whats the gap on them for the 5.2 ? i want to get some after market sparkplug wires also, the biggest i have seen soo far is 8mm i had 10.3mm wires on my gtp. i want to get a 180 degree thermostat, will i have to have a coustomer pcm for that, soo i dont screw anything up? i want to put a new fuel filter on, stock would be fine i suppose. and for intake i'm thinking maybe the k&n system but its like 280 bucks, any other path to go for cheaper intakes but work fine? No i dont want to build my own out of pvc just dont want too. also anything else for ignition for performance ? When i get some more money i would like to get a superchips but i'm gonna keep it on the 87 octance setting, i dont feel like paying for super right now, plus here in maine the highest octane at the pump is 91, last year it use to be 93. I'm also thinking of changing out the tranny fluid and putting a new filter in, idk if that's safe or not since it has 179k, i heard of flushing the tranny isnt safe many times, because it loosens up gunk or whatnot that holds parts together.