Originally Posted by Qatmix

Shims underneath the blocks will raise the roll centre more dramatically than changing the upper bulkhead shims.

I have done the above when running on a high grip black carpet track. It helped free up the car and also reduced its tendency to raise the inner wheel on a couple of tight infield corners.

I would remove them for the average uk club carpet.

Marcika, great results. Be great to see your set-up.