like everyone else has said I don't thing you would want to waist money on the stock carbs. But yeh when I went to alky i had to run +7 timing, compression between 140-150, pingel valve and take all the stuff out of the stock tank lid and drill it out, B8ES plugs gapped at .018, they put bigger mains pilots and needles and drill out the side of your carb and put in another jet for when you are wide open. and then everytime you are done running it you have to purge it, which gets kinda annoying but in my mind well worth it!