Unlike most of our GM cousins (bigger cars of the same era), our front geometry is designed for some positive camber gain. Lucky for us. The challenge is when you are building something to get the chassis much closer to the ground and update to a rim choice that will offer some tire options. I don't know if others have been looking much but even 15" tires are much less common in the wider variety...
In my case, I've got the chassis ride height setup for around 4" at the pinch weld at the bottom of the rockers. (I've extensively modified the drive train to put everything scrap-able up above that point including the exhaust).
With 2" drop spindles I was able to at least get the LCAs to sit roughly level at ride height. The problem is that puts the UCA at a pretty aggressive + camber gain angle. I've run a few sims moving the UCA inboard mount up a bit but there's really not much change. I've also modified the tapers on the ball-joints to get roughly 1/2" shorter to mitigate this problem a bit. It's possible that with limited suspension travel that I will not have a problem but I wanted to spread out my thoughts to the collective and see what you all might think about it.
One other option I guess I'm considering is modifying both the upper and lower inboard mounting locations to raise them up. Perhaps that would solve my problem...
Since I fabricated everything in the rear for the Rx7/Miata rear IRS setup, I was able to set that geometry to be perfect at 4" for a really flat curve with a little + camber gain for roll...
The roll center seems to work out pretty well for the front. Perhaps I should just roll with what I've got and see if I encounter a problem, then fix it. Practical experience vs. theory/hypothesis. Make sense?
Thanks in advance for your thoughtful input.