always verify a thermostat's fucntionality by putting it a pot of water and bringit to temp bdfore putting it in, saves you alot of grief.
also, always replcae teh radiator cap with the 'stat.
when you fill the radiator up, make it the highest point of the system(uauslly is, but if you have to jack up the front, so be it. start the motor cold with the cap open, and feel the upper hose, you should not feel any water passing through until the stat open then the hose will slowly get hot, when this happens, the radiator should go down, quite a bit, add 50/50 mix top off radiator and proper line on overflow tank.
