I don't understand why you don't just put lowering blocks under it. The fastest leaf spring car in the country has lowering blocks under it. Ron Rhodes has run a 4.40 in the 1/8 with them.
Installed 1" lowering blocks and 90/10s on the front ... made 6 runs at same track in better weather and 60' ranged from 1.81 to 1.838. My best previous 60' was 1.770. :mad: