Engine Problem, Stalling and Rec drop off prob Options

[Shortty]

Hey guys,

this is my first post, and i'm hoping you can give me abit of help.

I have recently bought a 94 6gc. It is a UK GT spec, with the 3sge engine. But it has a problem, well actually it has a few problems but i'll ask about those in due course.

Usually when the engine is cold, it will sometimes drop down in revs, sometimes to the point of stalling, but mostly catching itself at about 200 - 400 rpm, then picking back up. It doesn't seem to matter whether lights or air con is on or off, and it does it worse when i press hard on teh accelerator and then let off completely.

It also doesn't idle very smoothly, altho the rpm gauge says its at around 800 rpm on warm idle, it still feels like it's a bit rough and vibrates a bit. Sometimes i find the idle hovers around aswell sometimes dropping then over revving a bit.

I've checked the air filter, and it's alittle bit dirty but not bad enough to cause this i'd have thought. I would like your help on what to look at as i dont want to pay the garage a fortune to not find anything - no engine light has come on as yet..

Someone i know said it may be worn spark leads, but rather than just replace them i thought i'd see if anyof you have the same prob.

Thanks in advance

Shortty