My typical "Dyno Run" up a hill at speed is 85 ± a few.
This is a steep hill that anyone following a loaded truck will want to shoot themselves.
K&N drop in, desnorkled, door tossed, supertrapp.
If I do any more I'll need a steeper hill.
I really don't see the need to go past 90, but you should be able to get there, even when going uphill.