Cheaper to go a set of R6 (36mm)or ZR6/ZZR (38mm)$120+ for street use on a mild 1.6/2.0, also get Mikuni carbs as Kehnin are tricky to set up correctly, the angle they sit on can't be too low, be sure to get the rubber mounts too.
This is my home made inlet & R1 carbs on Zetec
