I have an xb2003 with 1.87 gear ratio turning a 26 trophy that will run 85 mph.
I don't know anything about a hyperdrive, but 30 is a big pitch, if you can get it out of the hole it should do good top end.
The family and I are looking forward to it. Hope to be there the whole week.
Skewby let me Know when you do the pre-order for shirts and if there is anything we can help with this year.