Yup, checked the coolant today. It's still right to the top and perfectly green, even in the overflow reservoir. I also checked for leaks and found none.

Would it be the head gasket?
valve seals?
actual valves???

The exhaust has a wierd smell but its definately not a sweet smell. As I said before the plugs have a slight white residue on them and the exhaust has a hint of black when its revving up to redline. It hasn't puffed blue once.

'84 toyota p/u- 22r, Rancho 3" suspension lift, 31's, custom front and rear bumpers, etc.