Thank you very much, I´ll try with the mixture controls. Perhaps i can try to look for a bigger cylinder head, if i can find one that fits in my engine.

I first take notice of the temperature when i put the cover of the car, without it the, temperature increase later. With the windows open the car run better, but i im going to try to fit a buggy cover, The mine is from an old toyota celica and is completly full of holes. Perhaps with the buggy one the engine runs a little better, because the engine is out of the car.