Those of you who have had bad JuJu with the aforementioned carb, the 'High Performance' carb that is on the 2011 Grubee engine kits from California- remove the vacume line and plug the holes! Use a dab of gasket seal2 at the very end of the intake where it mates to the carb mount gasket and instal. Set the throttle needle at it's leanest, set the idle needle at 3/4 turn and work from there. Do not worry about the epoxy used to seal the screws- if it is too hard to turn them, just soak a bit of fuel on them and they will come free. I am working on a replacement for the nylon bushing out of aluminum stock. This carb is a performer! Almost lost bladder control when it kicked in!the Old Sgt.
