Welcome to AFM! Check out our 4.6 sections and you'll find tons of great info. Get some pics up when you get a chance and thanks for joining!
Im from AZ and own a 1998 mustang gt. Im planning to do a lot of stuff to it over time and i figured i would be able to get great tips and tricks on doing these things myself if possible with help from others that have done these already.
As far as mods go I think the best thing you can do right away is a pi head swap / throw a set of 99-04 gt heads on your 98 gt / I have a 97gt in the garage and my best mod so far has been the pi head swap I got a 52 rwhp increase from this mod alone .....