While we are still discussing the no go gauges, we still need to know what is the tech correct no go gauge + amount on the .602 gauge? Is it .602000, .6021, .6022, .6025.................etc or what? Just a very small amount like .0002" can make a carb bore be in spec or be a DQ! I've seen this in the tech barn over the years. The true actual gauge spec dimension is the most important part when a no go or a go gauge is being used in the tech barn.
On a side note tech men should be properly trained how to use a no go gage.........Ive seen them push ( or wiggle ) the gauge thru the hole! Not good!!
Steve