What about the balancer? Yay or Nay?
If you are talking about Parson's dome piston, I was told by them it will add 1 point to your compression ratio, so if you had 9:1 to start you have 10:1 with the piston, piston will help even if you don't have any other parts in the engine, because of the compression increase,as for it being better then milling, guess in some ways it is but not for the compression it's better because you have a stronger piston with increase compression. You can get more compression with milling, just remember to check clearances for piston, valve and piston, head.Would putting a pop up piston be better than milling the head? If left to close the same specs as Level600. Or would you need upgraded valve sizes, bigger Cam, Ect?
Just my .02.
The balance shaft can remain if you'll keep it under 6000rpm.
One thing I DO NOT like, is clearancing the balance shaft when you add a billet rod. Putting a notch in a big off-balance spinning piece of weight at 6000rpm is like scribing a piece of glass in my opinion.
I'm more likely to cut some of the dipper off of the billet rod (sorry ARC) or take the balance shaft out.
Every motor that I took the balancer out of shook like a paint mixer, I just run it and make my power below 7000 rpms.