Hey guys im seriously about to throw in the towel with this car.
Its boiling after a short while with very little load on the engine.
The overflow bottle is boiling out when the car is turned off.

The car started overheating not long after all the engine work was finished about 1500kms. I re-torqued the head bolts on its first overheat since engine work and it did prolong overheating as well as remove pressure from the radiator hoses.... but its still getting worse. The longer the drive the more it overheats.

I have tested the water pump and all is working fine.

I have changed

Head Gasket
Shaved the Head
Thermostat
Brand new radiator
Radiator Cap
New coolant

Note: It also idles high (about 2000) after coasting at about 90-110 kmh... i have to turn it off for it to go back to normal

Im seriously about to burn this car... help!