1ORANGEWS6

I have a Vig 3600 its pretty loose on the street and it sucks on the spray! I was thinking of trading it in on a multi disc to handle the spray but didn't know how big of a stall to go with. I have a list of mods in my sig and soon to be H/C in a month and I want to get a TC that will work well on the spray as well as NA. I like the hit off the line of a big TC but want it to be tighter on the street. So my question(s) is what size multi disc do you have, how does it handle on the street/strip, and how does it take nitrous?