I just did a tune up on my Blazer (plugs, wires, cap, rotor, oil change, air filter and cleaned the throttle body) and I like to tinker with it does anybody have any suggestions of what else I could do with it main. wise?

 

fuel filter, new belt( if it needs it), cooling system flush, new hoses( if it needs it) just a few suggestions for you don't know if your blazer needs it or not.