Supercharger on a high mileage engine

I've been debating whether I wanted to do cam's, upper intake, and possibly a headswap but now I've decided to get the Kenne Bell kit for the 96-98. I have 114K miles on my car now but they are mostly highway from the time I bought it with 46K in July of 2002. I know these engines are OK until about 425 HP on stock internals but what about on a higher mileage car? Anyone with any experience? I'm only going to be pushing 350-360 HP at the most at 9 psi. The KB website says there shouldn't be any issues for a higher mileage car but I wanted more opinions.