I have bought the exhaust Orcan OA1911, recommended by Bertram Kessler and Alexander Hagberg. The exhaust was still have not received it.

I currently run on a track that is at sea level and I have told Bertram that the engine was not running all that should run, Bertram then gave me some advice, I said the following:

You must put out to 0.10 and put in 0.15 it give from Nova Rossi
Or If You Have inside 0.30 you put out and give in 2x 0.10 and 1x 0.15 in end You have not You have 0.38 and 0.33 so you can close the top speed.

I was also recommended to use the glow plug Novarossi C7TGF