gots mismatched valves back from machine shop. any valves you guys suggest?

[weider1717]

Got the heads back with the smaller valves/ exhaust I believe? all mismatched.

Taking them back next week to tell them just to replace all with new valves (not going to argue but they wasn't mismatched before hand) not worth the time..

my question to you is not knowing what brands are better than the next to what compression ratio is best what compares best to what came in it stock or would be better?

its an 87, 350 5.7 with 68k miles heads never off until now. thanks