I have an 1150 quickfuel dominator on my 500. I can't get the car to stay running. I have tried messing with the four corner idle and all the obvious but nothing works. My buddy seems to think that the carb may not have a power valve and that's why it won't stay running. I bought the carb used and am unsure if it has one or not. How do I check for one and any other ideas what the problem may be?