Really good investment when tuning carbs is a set of jet reamers. I have a set, somewhere. Probably in the box that contains my Dell'oto carbs. Wish I could find them so I can sell them. Thing that's good about reamers is you don't have to get a set of jets for tuning. With the reamers it's easy to go richer, but leaner needs a little solder in the hole and then you can go from there.
