I have a 1979 450 sl roadster. I let it sit for a year, and this morning I decided to take it out. She started up right away, that felt great. I let the engine warm up for a little bit then started giving it some gas. This i when i ran into a problem. The gas pedal keeps on getting stuck, it wont go back up, so i reached or it and pulled it up. Does any one have an idea on how i can fix this? Any ideas will be greatly apreciated.