lol
The only time I will touch the engine is if something blows. I am plenty satisfied with it as-is.
Even before I touch the engine the likely 'go' mods would be a SW chip and a LWF combo. No power increase but drive-wise the difference will definitely be felt.
After that I would consider a transmission re-gearing, which is said to make a world of a difference but is costly.
In the short term the only mods that will have an impact on the 'go' is a simple weight reduction. The seat upgrade will save a solid 100lb, and removing the sound system will help as well. Possibly a 4th lighter set of wheels and RS door cards are in the picture somewhere down the line as well.
That being said, although engine mods are not in mind at the moment, tranny mods/weight savings are the only things I am considering at the moment. And that will make me a solid $20k poorer as well.