Ok, I just tested out the 80 puch after cleaning the carb again the other day. It is going _alot_ better now - only a little bogging down when the throttle is wide open. Had it about 20 - 25 mph on our street.
Question though...is the gas cap vented? There doesn't seem to be enough flow through the gas line/filter (all new) to the carb after about 5 minutes. When I open the cap, gas gushes down the line and floods the carb - gas all over the place - out through the primer plunger. I think if I get this resolved, the thing will run pretty good.