VW Gol 1.8 Curate Packaging Change

Very good afternoon gentlemen.
I have a VW goal 1.8 and I had a problem of an oil leak in the engine. I realized that the cylinder head was broken because I saw that there was oil in the cooling container; I already made the Enpaque camio, check the projection of the butt change other components such as valves and other packaging. The car was well.
But the big problem is that I do not understand why I lost strength as 50% and I am worried and not that S must.
I thank you for your answers to this problem.
THANK YOU SO MUCH.

Good afternoon friendship, check if the time is well taken in the crankshaft and camshaft pine

hello.
Check the distribution strap, if the height is correct, the tuning of the ignition system, and cylinder compression measurement.
luck.

Knights thank you very much for your considerations and recommendations. I will put them into practice and make the respective reviews.
Thank you again