Welcome to the site and addiction. Some cheap easy mods, TORS delete, parking brake delete, timing plate, intake, changing sprockets, tires, you can do suspension, arms, axle. It all depends how far you want to take it. But those are a good place to start. Check what you have done so far. But take a look around on the site, you'll see something you like and want it. Like a nice port job and 4 mil crank.