too much room?

wat up fellas! my first post after months of lurking, and u guys have been unbelievably helpful already so here it is after a thorough tuning of my mk 2 condor valve there seems to be a bit too much wiggle between the stem and valve guide. too much polishing l guess ❓ . is there any way to sleeve the stem or guide, or do you think the breech will hold it sufficiently centered? happy to join the madness, bill