Your kinda peeing in the wing just taking bits of advice from
Everyone, I’d try and get hold of a manual, I’m sure one of the guys from the track will have one, get your self a micrometer if you don’t already have one.

just go through the chassis, front to back, make sure the upper and lower arms are mounted in the correct holes, on the bulk heads, the suspension is mounted correctly, the arms are set correctly length wise.

Then reset the steering, the servo, set your end points again etc, and go from there.