what kind of easy updgrades can be done to the 4.7 L v8

Superchips, Fastman throttle body, cold air intake, plugs, cat back exhaust. Superchips is about a 10 minute job, exhaust is a few hours if you do it yourself. The others are about an hour, give or take.

The high out put engine upgrades, unless you have a ho engine already...

CAI, exhaust, chip, oil change to better kind, plugs, and plugwires,

on mine i got a great amount of throttle resonce from taking the cat off and i dont mind the check engine lite on but my truck does had 190,000 miles so do what ever u want

here is a good DIY link...

http://www.v8performance.com/tipsandtricks.htm