I have had my Rush for three years and just recently installed a .15 SS. But at very low rpm's the wheels of my car are still spinning and when I place it down on the ground the car shut's off. It seems to only stay running when the idle is turned very far out. I have a feeling that the standard shoe and spring clutch might be worn out. But I don't want to put and money into buying a new clutch until the problem is diagnosed. If anyone thinks that they no what the problem is please feel free to give me your thoughts.
Thanks.

Sounds like a question for the car forum.