So, as you all know, I'm pulling the head to replace the gasket on the 28. One thing other than the block test fluid turning a slight greenish blue after the two minute test, and NOT a yellow, I did notice what looked like effervescence tiny bubbles passing through the Gano see through filter while running. At idle the car remained cool or at safe temp of around 150 with the new Brassworks radiator. Like I have said I did suspect the head gasket (no coolant in the oil) Are those tiny bubbles part of the head gasket problem? No "Tiny bubbles in the wine" jokes....please.
Don