[911T1972]

I have a 1972 Porsche with a 2.7 L. engine with Zenith TIN 40 carburetors. It starts well when the engine is cold and runs great, but it will not start when the engine is hot. The starter turns the engine over with good rotations. Operating temperature is usually around 190 to 210 degrees reading from the oil temperature gauge. I checked the oil temperature with another thermometer and the dash oil temperature gauge is accurate. I have to let the engine cool down for about 30 minutes, then it will start again. I’m open to any suggestions anyone might have.
Thanks,
Chris