HELP!!! 1969 camaro suspension nightmare

[CamaroBigBlock]

Hello guys, I need your help. I have a 1969 Camaro with a big block. I upgraded the front suspension since it was missing, broken, or worn out. I put Upper and lower Heidts control arms, QA1 coil-overs, Hotchkis sway bar and unsteer power rack. I have been having this problem for some time and no-one can figure this out.
The car aligns fine to spec. drive it a few 100 yard making a few turns and the car toes in real bad and changes the camber real far postive. We have removed, checked and re-installed all components....even swapping to s spring instead of coil-over.
We have taken it to a few places and all the want to do is promote the product they sell. I believe none of these companies are cheap or inferior to other companies. I just want the car to drive. When I talk to unisteer they blame it on the control arms. I am starting to believe it something in the power rack but not sure why. PLEASE HELP!!! I am sooooo sick of checking and re-checking the front suspension. Im running out of patients, and money
Thanks