I just replaced the accelerator pump in my QJet. I used an Edelbrock plunger which has a shorter overall length and duration spring if that has anything to do with my problem. But, as soon as I started it, it was running way rich. I've gotten it to stop smoking some, but you can still see it a little. To anybody with experience, what could have gone wrong? Did I pinch the power valve open? Did the airhorn gasket not seat and I'm pulling fuel over from the float bowl?