Hey mate, i recently put a 32 32 on my std 4k, i suggest getting a 2 inch system on it asap after you put your carb on, i got a custom job done for like 600 extractors and a high flow muffler (for the back pressure), with your carb i suggest slap her on and see how it runs, tune accordingly. Google stuff about tuning carbs there are some useful articles you can find, idle jets run up to about 2000- 2500 then the mains kick in and up around i think 5000t to 6000 the air correctors kick in. blowing shit out the exhaust, spluttery and when throttle is applied sluggish rev gain then its too rich. revvy but running hot, and sometimes a higher idle too lean, that is most dangerous can shag your engine quick smart, better to run slightly rich for safety sake. for working out what jets are what google for a blown image of your carbie with labels and you should be able to work out idle, mains and air correctors from that. it can take a while to tune but once you know its on its obvious how a little tuning can change an engines characteristics. primary i'm running 55 idle, 135 main and 165 air, secondary is quite similar, you will also need to play with your mixture screw.
hope this helps