Look up zed1015's build thread
Titled 1428 turbo or super page 23 or so he bores them out, not for the faint of heart though, I ruined two bodies before getting it right myself. The pumps don't have much of an effect beside the idle on the later carbs being a bit too lean
my bikes; 80kz1000(project), 77 gl1000, 74 h2 (project)
Past; 78 kz1000, 83 kz550
Andrew
