Hey people, got a problem / headache Here goes - When on idle the car doesn't overheat or bubble up, could say it runs near perfect but when you press the accelerator the water level in the header tank goes down slowly then rises back up and sometimes and boils out the overflow when you take your foot off the accelerator. Also when rolling I have a loss of power when accelerating like it wants to go but is being restricted. I've changed Header tank Both water pumps Thermostat Head gasket The car had been sat for bout a year as I was rebuilding it slowly. Just before I put it down it ran fi