What are your valve clearance measurements at?
I am still having issues with my feeler gage technique. On the number 2 exhaust valves I can get the .6mm in it. I am at the proper cam position, just not sure which measurement is correct.
I can start to feel resistance going up in size gage at .254 mm. After that increasing the gage size until it will not fit does not give a stopping point. I am uncertain that this is the proper technique. I got up to .4mm and then skipped to the .6 and even it fit...