I think i might have found the problem. After the thermostat housing change i did yesterday, i replaced the dizzy cap and rotary arm as the were fubar'ed. When i got in my car and started my headlights were alot brighter than usual.
Was thinking possibly a bad con in the dizzy cap possibly not allowing full spark, then leading to too much power being put into the lead and getting wasted? Or is that just crazy talk? Lol.
Mileage might be better as well now.