I have a set of TM Mikuni flatslide 40mm carbs from an 03 900 Cat that have been bored to 42mm on the intake side and modified with EFI throttle body size throats and taper bored to approximately 46mm on the reed valve side. The chokes have been blocked so they would require a primer system. They also have an adjustable power jet setup installed. I have the efi intake boots that fit them cut to fit V force reeds. $150 shipped to the lower 48. Will try to post pics but have them I can email easily. Send a pm or email jkned@ida.net