The fuel always floods the engine

This usually happens in XP11 if you have a Warthog HOTAS connected to your PC. To solve this issue: Open the joystick options in XP11 Select the Warthog HOTAS Make sure that the fuel pump switch is not assigned to

With the T210 I often get a vapor lock at start

It all depends on the CHT. If it’s more than 70-100 °C you easily incurr in a vapor lock. That’s how the TSIO-520 behaves. Just run the fuel pump for at least 30 seconds. This will recirculate the fuel in