Originally Posted by itsabird
I am starting to think along the same line as fastvega, fuel problem, a little lean, did you retune your carb after the port work, and what was the 1/4 mph on that pass?
i thinking either not enough air(dirty air filter) which is making it run rich or its starving for fuel on the top end...
i've had both happen to me and it sounds the same :wink: