Well after reading here over the past 3 mos. i've completed a few upgrades, chip, catback flowmaster 40, Y pipe, K&N fipk and most recently new plugs "Damn what a different truck" My gas mileage was an avg. of 13.3 (city/highway) and now have tracked for 2 mos. and am getting an honest 15.4 - 15.8 mpg. On the 4th i woke up and decided to give the plugs a try and after reading the posts (expecting 2-3 hrs.) I set up and checked the time and when I was done 1 hour and 15 mins. went by (10 mins. of that saying hail marys) I noticed that the closest plugs to specs was .062 and I had 2 at .074, Boy am i glad I changed them.
I havent had time to set up a signature but will soon. Thanks for the info.

97' Black 150 KC Offroad, custom graphics, black leer cap, wood kit, captains chairs, 4.6, 3.55 gear, keystone hood scoop, lunar visor, catback duals,superchip, K&N, pulling a 24' black enclosed race car trailer (with matching graphics) perfect black paint and the best feature of all "NO PAYMENT BOOK"

 

Thanks for the encouragement. I haven't read many, if any, posts that made the plug change job sound anything but major!

I may give mine a shot then. Of course I've got the 5.4 in a 2000....hmmm, I better not get my hopes up, but I'll still look into it.