Car Running Rough/Stuttering

I just picked up my car from the body shop. Not only does the paint look like crap the car is stuttering so bad that it feels like a four cylinder. The day before I dropped of the car I washed the engine and took it for a ride and it felt fine although it has been running a bit funny since I put it back on the road for the summer.

I disconnected the battery and when I get back home I'll see if that helps. Any other advice?

Thanks!

Paul

Thanks!

Tomorrow I am going to take a look. I took it on the highway after throwing in some Techron Cleaner. It's running a lot better but there is a lack of power. Maybe it's time for new plugs.