If the problem was just the needle needing to be mounted on the engine then why do you need to change to a walbro carb? Why not just move the needle mount? Wouldnt there be an easer way to add a pump then switching the carb. I think the cline unit or w/e its called is basicly the pump part out of a carb? Is there other reasons the carb needs switched? I cant wait to see the numbers with a pipe, subscribed! Im building an OMP profile over the winter and it would be great to run gas in my 1.6 instead of glow on it.