I had a single tweet sort of go viral, well, not super viral, just 4,500 retweets and 10,800 likes. But I would still assume that would bring in a lot of new followers but according to Twitter analytics I gained a total of 19 new follows.
Being a viral hit is overrated and brings superficial traction. The real fans are those that find you through the mundane stuff you post or share everyday. Those are the ones you want to interact with and invest your time into.