Worthless reject member
I doubt you're reducing strength much by milling. LSA heads are also made out of a stronger alloy, iirc.normally I am pro milling heads, but this application might see boost. At that point I can swap gaskets (probably get rid of the +4cc pistons as well) and keep the same heads. I admit that milling is a better way to increase compression, but I just didn’t want to buy another set of heads down the road. my other n/a setups have had milled heads.