Here is what my roommate sent me about his integra. Let me know what you guys think: "My Acura over the past couple days has started to make a lot of valve noise, it clears away at higher RPMs but at idle there is a lot of lifter "clatter" that hasn't been there before, oil level and everything checks out, it made the trip from Monterey to Willows (about 250 miles) too. Do these heads have a known problem with clogged oil passages in the head or anything you know about that might cause this off the top of your head, its got me a little worried." I do not know much about the LS head. Does anyone have any useful information for me to pass on to my roommate? Sounds to me like they just need adjusting.