It was over-filled by 3ltrs, I didn't feel much difference but when I started pushing the engine it was showing signs of hesitation followed by burnt oil smell, which I thought was coming from the manifold breather, and when I checked under the hood that little filter we fitted at the end of the driver side manifold had oil dripping from it, and that was another warning signe.

Maybe I should get another tune sent, the first one didn't fix that issue.