well that doesnt really make sense, we are running the caltracs in the lower hole and a 3/16 gap and the car 60fts the hardest with this setup. my only reasoning is why this works is the pinion angle is set with the caltracs against the springs, so i may be shocking the tires harder this way. we ran the car last week at irwidale and it 60ft time was a 1.38.
on my brother superstocker we made our own caltrac style suspension device with a mount point much lower than the catracs and the bracket we made for the axle tube mount was much lower as well, essentially makeing a poor mans 4 link, this was on a 68 camaro with a 30x9 radial slick we saw a best 60ft time of 1.32.
so which way should you go? well we had rented a track nearby for a day with some freinds and worked on our setup, we made 30 hits and didnt make a full pass since all we were concerned about is 60ft times. we changed hole postions, preload, to a gap etc till we found what worked for our car.
also we found out that the front spring mounts in ovas are different than camaros, the camaro mounts make the car sit lower but provide a not so good postion for instant cernter, by making nova monts fit we were able to get the instant center where we wanted it. we used astro van fiberglass mono leafs in the rear, we had to machine our own front eye mounts to bolt to the spring, but they were so stiff and the price was unbeatable. i lost all my pics of the setup when my computer crashed, but next race i see the guy we sold the susp[ension too i'll snap some pics and post em.