2001 Yamaha Blaster Horsepower?

I have a 2001 Yamaha Blaster that I bought off Craigslists for $1200....it has problems starting but once it warms up it hauls . It had a sticker on it and it said Wiseco? It has a FMF Fatty Pipe, Power Core 2 and K&N Air Filter? How much power do you think this thing has. My brothers have a stock 2004 Blaster and I can smoke them like nothing.