S5-E carb swap from 14mm to a 19mm

[kbro]

I have a S5-E that I'm getting a 19mm carb setup for. The kit comes with 1/4 turn throttle, throttle tube, cable, air filter, and carb. The one thing that it doesn't come with is the intake boot. I know that a lot of people have done this conversion, but I can't find anything on the internet on what people are using to connect the carb to the jug itself. Has anyone out there done the same conversion and have any words of wisdom? 

[ktmriderman]

what exactly is the 1/4 turn throttle cable for. I have heard other race dads speak of it but I, myself have never heard of it.