Quote Originally Posted by hupiveneilija View Post
I measured also heads from 30 to 34 and my small chamber 21.
That 190, is ex port in stock timing? I have chamfer, 1.382 from deck.

My motor feels real good when running even its quite worn. White one when bored and built with new pistons 5 years ago wasnt nothing like this now. Think that crank psi isnt the hole truth as you go on higher rews. Big part of the story is scavening and how it works.

I think Ill try little more ign timing when go out next time. A degree or two. IMO my previus PH wasnt up to task, not even if I had limiter taken away, because it was just under that and was hitting occasionally.
Be careful on the timing, the 56er typically does not like more timing, if your looking for top end you don't want more timing