I've been having trouble with the car lately, and the carb is part of the problem, if not the entire problem. I'm not sure if it just needs to be rebuilt or what, its about 8 years old. At throttle, I can see that one barrel is getting way more fuel than the other (maybe normal, maybe not) and it just runs rough, surges and stutters. I've gone through everything else on the car, and its fine, so by elimination, I'm guessing its a carb problem. Overall, this one has never seemed to be perfect anyway, even after extensive tuning.