Can you even fit them to that vintage Enduro?
I recall they have a clevis mount on the shock, rather than a standard eyelet, so not applicable on the back end. On the top, you can probably get one in and that’s it. It will make next to no difference, maybe half a degree on the head angle.
It doesn’t change the travel, on some bikes with tight tolerances you might find there is frame contact, or tyre contact etc, so it’s worth cycling the suspension with no air in the shock to see if it will fit.
Oh, and FYI, you can’t get an angleset that fits the Enduro, due to the odd ‘Campy style’ headset arrangement.
In short, you’re pretty much stuck with it how it is.