I did a valve adjustment for the first time and I believe I may have adjusted them a little on the loose side as I did not have an angled feeler gauge and I didn't have the correct sized gauge that the manual calls for but a size a bit larger.

Can I drive like this safely?

 

well as long as its not too far out of spec, yes. It is better to be on the loose side than tight, because if they're too tight, you might burn ur valves.

I didnt use angled feeler guage and mine didnt turn out so great either. Im going to purchase a real nice set of angled when i get a chance before this winter. You should too.