Can you tell me if I were to replace my CV Carb with a Mikuini,and the comes setup to run stock,what size jetting should I start with? My bike has a bore kit to 1550,with cam's,and headwork.

 

The carb should run pretty good for you out of the box. You might need to play with the main jet a little. I have a similar combo and I am running the stock pilot jet (25) and a 167.5 main jet with a 1 stage leaner needle on the middle clip. Your elevation with play into your final settings also..