Frame or chassis options for A bodies

I would contact the suspension places and tell them what your goals are for the car.

I know when I talked to the guys at Magnum force , they have guys using the transformer for autocross builds.

Guys are also using Reilly Motorsports stuff as well to race.

If your not so worried about a bolt in deal, you could contact Art Morrison to see it they offer anything that would work in your cuda. I know they offer 3 link rear clips.

[ame="https://www.youtube.com/watch?v=_XlIz9fMZi8"]Part 1 Magnum Force Transformer Suspension Installation by Stacey David on Gearz TV - YouTube[/ame]