I don't think anything over 15 tooth will fit on the front. But 16/35 gearing would be extremely high, it'd most likely kill your power. The highest gearing I have heard of on a blasty was like 15/38 and that was on a super modded one.
Your lucky! My Blaster is at my grandmas because of the gay neighborhood wont let us have atvs, our next door neighbor has a f*cking Kubota tractor! and the one that lives about 100yards away has a Polaris RZR 800 EFI. They fly past our house during the summer....We're gonna be moving soon closer to the country...