So I have Wiseco HD pistons in 85.5mm so I got the block bored .020" over. Did the math that came with the Wiseco rings and it's .017" top and .019" bottom. I grinded the top rings down to .017"-.018" just fine but ran into something weird on the 2nd. Without grinding anything off the 2nd rings, they all measured .021"-.022" on all cylinders. Should I contact Wiseco and tell them to get me new rings or just use these as-is since it's just .003" bigger than what I calculated.

 

It's fine. .018 top and .022 bottom is a good gap setup. If you're going big power (big turbo pushing 35-40+psi nearing 4 digit power numbers), I would open them up another .002'