I checked my camshaft timing using a dial gauge on #1 intake. I don't know of another way so I'm doing it by the book. My camshaft code is 02 so at 2mm of lift I read @ 15° after TDC(spec being new chain 11.5°/used chain 13.5°). How on earth anyone can see resolution within 0.5° is inconceivable to me on these counterbalances. I'm a perfectionist to a fault so I want to achieve the specs but...

How do I know if the timing indicator isn't off by a couple degrees? Does someone know if they are adjustable or prone to installation error/wrong part from previous owners?

I'm in the ballpark I suppose. A 3-4° woodruff key will get me to 'new chain' spec. It just seems like there is little tolerance for error with a lot of factors which could be throwing me off. Maybe I'm just overthinking this...