did you keep or remove the little weight on top of the check ball that's under the nozzles? I'm fine tuning my 600 on my 318, and removing the weight took away about 80% of the stumble, so I think I'm going to open up the nozzles a bit...just wondering if I should put the weight back in.
Patrick, I had no "weight" just a check ball and a spring holding the ball down, so when you opened the throttle the accel pump worked against the ball and spring (like a check valve) to shoot the fuel out of my drilled shooters. I had the car out again his weekend. I has never run as good as it does now
