Si 24.24 Polini Venturi Carb Kit on a T5

Has anyone fitted one of these on a standard T5 engine? what results did you get?

a couple of things. I'm running a simonini exhaust, so I'm up to a 112 main already (from a 110 standard) all the jetting advice I've seen has been for a p200 but I'm pretty sure I don't want to go that big on a 125 engine... recommended 5-8 sizes, so maybe a 116?

also my current standard air filter has the idle screw and spring fixed inside the air filter somehow, is it possible to remove it without damage or will I need to buy a new screw and spring?

thanks in advance for any advice.