rough idle
 

I had my 944 in to a mechanic to do the timing belt and cam tower gaskets and seals
and now it has an intermittent misfire
I haven't investigated it much at this point but it doesn't seem to be a problem except at idle and it's very noticible
it'll purr along fine for a bit then misfire

I'm really hoping the belts aren't an issue...I read in the archives about having an improper firing order....I'd figure both of these would be more consistant though? (it can be several seconds between misfires)

I don't really know where to start and my manuals are at home about 200km away