Caltrac tuning on 67 Mustang. I was having trouble with too much body seperation so I tried the lower hole. I ended up puting them back on top and dead hooked. Slicks from what I hear like the bottom hole, but mine did not. Stock 6 cyl springs with 90/10s, all rubber replaced with metal, stock leafs with extra main leaf, ranchos full stiff, no preload.
