I'm getting .004 Main bearing clearance measurements with telescoping guage and outside micrometer. The crank mains has been ground to 3.240" , the main bores torqued to 105 ftlb measure 3.244" with bearings and 3.440" without. General consensus on the internet says it should be in the area of .002" for a street build. But two machine shops , the one that did the work and another I talked to for a second opinion , say it should be fine. Will this be ok or should I ask to grind the crank .020 and try to get it closer to .020?