The truth about caltracs

Every setup has it's problems.
Here's my ladder bar car needing to have the instant center adjusted.
I need to have the traction last less.


How does one go setting up a car with ladder bars or a 4 link? Is it "roughed in" on scales then fine tuned at the track? Or is it all just trial & error?

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This is a local guy, he is actually 69valiantracer's friend/transmission builder. Car is a deadly consistent low 10 second car. No wheelie bars. Don't know what it has for rear suspension but it aint leaf springs. This picture is how it launches. Hits the slicks, picks the tires up that little bit for not even a car length then scoots down the track.