I have the 2004 Softtail Standard with the Screamin EagleII pipes and the altered stock carb. I have forever tried to get rid of the embarrasing "hiccup/cough/sputter" by doing all sorts of things with this carb but I am fed up with it and its stupid vacuume operated throttle too, so after much research I am going to go with the Mikuni carb I want to get the 45mm but here is where I have questions. 1: Can I run the 45mm Mikuni on my bike with basically a stock engine? 2: What kind of intake (brand or model) should I attach to it? I was leaning towards the kuryakyn but so far havent heard anything good performance wise about them other than they are pretty. Any help would be appreciated. P.S. I forgot to mention I also have the K&N airfilter with the backing plate removed.