Camber Gain

Taller effective spindle height will change the UCA angle.

TT5.9mag said

While the SPC uppers are nice and do have a lot of adjustment, setting static camber and changing the geometry for more/less camber gain are two completely different things. Although the overall length of the arm can be changed and that does have a slight effect.

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I think if you raise the UBJ much, you start to need adjustable length UCA to get to the static alignment numbers you want. I don’t know when that will happen. It will be trial and error for whomever does it. The cam eccentrics only have so much adjustment.

With all else the same, as the UBJ moves up the length of the UCA needs to be slightly longer.

The roll center should move up when the UCA angle’s more inwards. So then you decrease your front roll couple/lever-arm and decrease weight transfer due to body roll.

I think you’ll be limited to how much taller the UBJ is by the clearance inside of your rim. I’m guessing you have high backspace rims that go over the UBJ ?

How much room do you have to work with?