Got a little problem! All of the sudden this morning on the way to work, my car starts breakin up while i'm cruisin and givin it little gas. Sounds like it's either missing or detonating, can't tell, but when it does it, it sounds almost the same as the car did when my valvespring broke, so I think it's missing! It's not doing it all the time, just whenever it feels like it I guess. It's fine at idle, fine if I rev it, and fine if I get on it and sounds healthy! It's just doin it when i'm cruisin, and if I get in the gas more, it kind of goes away, but will come right back once I come down a little on the gas again! I don't know what it is, and am worried about my motor! Just curious everyone's opinion on what could be goin wrong and what to check to try and fix, thanks a lot!!!!

PS - Just changed my plugs like a month ago if even, and have msd wires that have been on there for probably close to 30,000+ miles, but don't see any arching or anything from them, so I think the wires are ok.