2008 Victory Vegas Jackpot front tire.

I went on a ride yesterday with my 2008 Jackpot the road had quite a few curves that had signs posted at 50mph I was doing around 70 ish. I noticed that the front end started feeling real loose. I'm assuming this has to do with the narrowness of the front tire? Would putting a wider tire on the front help its handling in the twisties and if so how wide can I go without alterations?