I would put my money on a plugged water passage in the block or a upside down thermostat. F's are natorious for plugged/caked up water jackets usually around the center and rear most cylinders. 2F's started putting steam holes at the head deck to relieve dead coolant movement problem. Heater cores usually flow from bottom to top (heat rises) while radiators flow from top to bottom.
Colorado Trail Patrol
Stay on the Trail!
I'm the God-fearing, gun-toting, American flag-waving, conservative you were warned about!
Originally Posted by Jacket
Welcome. Lots of "northsiders" here in the club. We're known to have some of the strongest, coolest and most awesome club members.
Originally Posted by Red_Chili
Cruisers are superior