[subarvair]

When I welded in the inline thermostat housing, I plumbed a T just before the thermostat for a bleeder valve and a circulation hose that is connected to one of the circulation outlets on the pump. That allows me to bleed out the air and should also give me the circulation needed to open the thermostat. I should have taken a picture. Drilling the hole makes sense.
Thanks for the input.
Mike