Hey Joey, sounds like you have a carb that's too rich, causing black electrodes. I believe there are two adjustmants you can make, one is the butterflies and the other is on the bottom of the carb which effects the mixture. I think you get everything else, plugs, points, etc. changed and set, then you adjust the mixture screw on the bottom of the #1 carb until you get the RPM at the highest point and then tighten it a 1/4 turn to lean it out. Then you do the #2 carb the same way. It's been a long time since I tuned SU's, so I may be mixed up, maybe someone else can chime in here.