A taller tire compared to rim diameter is always better on a rough or poor prep surface. The tire will bridge air gap spots better and the sidewall will also have more yield. You can also run less pressure and get more contact patch, plus that patch has more evenly distributed weight.
On tight prep and a smooth surface it means a whole lot less.
It's not much different than belt wrap on a pulley. The taller tire gives more "wrap".
The suspension geometry changes a lot with height. That can be a negative in a Fox chassis if you reduce spring height to get the same ride height or it rakes the car nose down compared to the rear.
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89 LX. 363, single turbo, Super Vic EFI, TFS high port heads by TEA, solid roller, glide. Holley HP EFI. (exact combo varies)