Second head.
One guide that has a .... Tight spot. It won't cleanly pass .342, it's probably a few .0001 tight. All the rest were exactly as the first head.
Valves, found one exhaust valve with .001 taper, all the rest were tenths like the first head.
Intake:
0.3406
0.3408
0.3407
0.3407
Exhaust:
0.3404
0.3406
0.3408 - Taper down to 0.3398
0.3403