1973 225 valve adjustment help!please!
The safe way to adjust ANY engine with solid tappets is to rememsber
EOIC
Which means
Wrench/ bump the engine around until
the EXHAUST valve just starts to OPEN, and adjust the intake on that cylinder
wrench/ bump until
the INTAKE has opened and is almost CLOSED and adjust the exhaust for that side
I usually pick a feeler "at spec" and one about .002-003 larger, adjust until the "spec" goes in but not the oversize