The Cal-tracs are a system and work best when you use all their components.

I tried them with SS springs and the car porpoised badly.

I ended up using the split mono's with the Cal-tracs and the Rancho/Calvert 9 position shocks.

With this setup it runs mid 1.50 60 ft.'s n/a and best of 1.36 with a 250 nitrous shot. All this is in a 3,700 lbs. car using only 275 ET Street Pro's.

I did recently upgrade to a Double Adustable Viking Crusader rear shock. I really need fronts for better control (currently 3 position adjustable CE shocks) and will upgrade them this Fall but so far the rears are working really well with the n/a tune. I would recommend a good double adjustable shock on all 4 corners at your power level.

Last edited by GY3; 04/01/21 06:51 PM.
'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.