I got the tubes unplugged using carb cleaner and a piece of copper wire small enough to up the tubes. Sprayed carb cleaner all around and found no leaks around the carb, but major leaking where the intake meets the heads. We did not use a sealant on the sides, only the gasket by itself. We did put sealant on the front and rear with the rubber pieces that come in the gasket kits. Perhaps these are not pulling down enough. Will take them out, and put sealer all around the intake and see what happens. thanks much - kip