sunk valves, stem height problem

inertia said

You may be able to improve the situation by juggling the valves around,, some valves may already be longer/shorter, by the way they were re-faced, so if you juggle it just right ,, you may be able to minimize differences,, then just trim the ones nec..

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x2. Given the machinist/equipment situation, and the fact you're running stock 2bbl cam, I'd say grind the to what you need, but after doing what inertia says. Chances are the seats are not consistent either so swapping around might fix a lot of this. Then number the chambers and valve so you know where they go, and just whack off what you need to. It's bot great, but it will run. I'm not certain the rocker tip will even be on the tip after you shim for a .030 varience.