shit'll buff out. if the car drives normal and idles normal i wouldnt worry about it. if u bent a valve or valves it definitely wouldnt idle normally. u can do a compression test jut to see if u might have had a little contact but ive done that several times with my 1st b16 and u gotta love that whiplash action, tires screaching, and bkue shift light blinging in ur face. lol!!!