Jetting for 185

Fitting a 185 barrel and piston in next few weeks (all work been done by Ron Phillips @ Fahron Engineering..... so no worries there) Running a dellorto sh22 with 42 reverse cone clubman......... any suggestions for jetting and should I change slide for 200 one without cut out? Cheers 
Oh,,,,,should add, it's a skelly,so open mouth carb with a bell mouth on it....(series 2 LI 150 engine)

Oh,,,,,should add, it's a skelly,so open mouth carb with a bell mouth on it....(series 2 LI 150 engine)