I have race engine with KentCams installed. I currenly realized that 2,3 cylinders has some issue you can see on the video below. Not defenitelly sure this is valve clearance issue. I have measured all and as I see I have problem only with 3 Exhaust all other within tolerances.

Here is valve clearance check:



And here is video: http://www.youtube.com/watch?v=EIxGbLC5 ... e=youtu.be

[youtube]http://www.youtube.com/watch?v=EIxGbLC5 ... e=youtu.be[/youtube]

So, does anyone have idea ?

Not really mater - but I would be more worried by the tight exhaust clearances on cyl 3 if anything.

get them swapped for the looser clearances in cyls 1 and 2.