Leaf spring question for the road race guys...

Raising the front spring eye has an affect on a couple of things.
It will take out most of the built in steering that is designed in from factory, which is a good thing.
It will lower the effective spring rate slightly as the spring is more parallel to the ground, which is also a good thing.
but the pinion angle will be out so you will need angled shims under the spring perches.

I used 1" torsion bars in the front, std. sway bar on the front only and 6 leaf springs on the rear from a ute, lowered by turning the front bracket around and the car was very balanced.