88 Accord problem, help appreciated

Hello all. New to these forums, got me a question I do. Anyway, on my '88 Accord there's a little rattle coming from the engine (sorry, can't be more specific...) at about 3500+ rpm. Any ideas on what it could be?

Also, if I bring my car too high in speed (say around 75-80) it'll start to chug. That is to say it seems like it's getting gas in intervals so it'll start bouncing. This isn't consistant either, it only happens sometimes. So any ideas on what this could be? Dirty induction? Engine misfiring? something else? Any help would be greatly appreciated.