Running rough

ok my maro has a rough idle and sometimes it stalls out, over speed bumps and shit. could this be the fuel filter? i ran for codes and nothing shows up, just 12? and thats normal? where is the fuel filter in my 1991 camaro rs v6, is it in the tank itself? thx

fuel filter can sometimes cure a wide range of problems..
its not in your tank.. its under the car near the rear end.. just follow the fuel line

ok thx for all those reply's
but pls i need some imput on this one!
i put some injector cleaner in: nothing changed
i put some fuel treatment that cleans the fuel pump valves and cylinder, but it started acting a little better, like i'd get this really weird vibration when it goes into overdrive and i'd accelerate slowly so it stays in OD.
but now its like it vibrates only when it wants to, its like i keep the gas pedel a little down and it accelerates fast then it slows down, its really hard to explain! can anyone tell me what u think it is/

So did you change the fuel filter then too?

fuel filter just got changed today! and to my disappointment it didnt change a thing! but i did notice something on the way home, whie im driving, dosnt matter what speed, if i turn left it runs great!! but when i start going stright or turn right, it runs like shit again it just has a very weird vibration.

btw: my fuel filter was dirty as HELL!!

You could start doing tests on it. Like accelerating, or cruising, or deccelerating and seeing when it does it, that may help lead you to tracking down your problem. You can be pretty sure that it is either a problem with fuel or spark/timing. But you may want to check intake stuff too. It's hard to say, maybe once you find out more and post some more info someone on the forum can be of some help...

could this be a internal problem? my engine be about to die? i have 125,000 miles on it. i dont really know what this could be, its a really weird problem. i'll check for metel shavings next time i change oil.

Sounds sort of like you have a bad mount {motor or trannie]