hi reed yea these babbies can realy wake up a bike , i use to install a lot of the smooth bore 29 mm carbs on the kz 650 an 0ld kz900, 1000 bike , i ran a set on my on my buildt z1b , i latter ran the 33 mm smoth bores , ran into issues with the 33"s not shutting down when i ran full throttle , too high flow rate in the vinture for the return springs , an yes the 29" are getting hard to find , thanks william A.
