Cal trac /mono leaf results

Without video it's kinda hard to tell what is going on, but it sounds like it is porpoising. You might want to try slowing down the front end lift. Do you have an adjustable front shock, or something other than the calvert 90/10 to try? Some cheap Competition Engineering adjustable shocks might help (not the best shock, but cheap and effective). The Calvert 90/10 shocks are great for some cars, but for others they just don't work well because they are VERY loose.

Also, how much Rear shock is showing with the car at rest? The other thing to check is to make sure you are not topping out the rear shock on launch. For what it's worth, my car has about 1.5 inches of rear shock showing (almost fully compressed) at rest.

Good luck sorting out your cal tracks, it took me the better part of a year to get mine to work well....but it still has not been able to beat my best 60' time from my stock (NOT super stock) springs, CE shocks and a pinion snubber. The only thing my Caltracs have done for me is give me a consistent launch, even in poor conditions....which apparently, they WON'T do for you...lol...so, who knows. Best of luck.