Here's a generic S2000 build I put together recently. 450PP on SH tyres. It should work on all the regular S2000s, not sure about some of the tuner ones, not tested on them.
Generic S2000
I would experiment with wheel alignment, try something like this:
Camber: 2.5 / 1.6
Toe: -0.18 / -0.16
Match your springs to the weight distribution, but add an extra 5% to the front spring. Use the markings on the slider to calculate the % required, all the way left being 0%, all the way right being 100%. You should end up with something similar to that posted in the link above, just make sure you've set the front to 55% and the rear to 50% 👍
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