High powered 67 dart convertible

I’m deep into a build on a 67 Dart Gt convertible. Complete RMS coilover suspension, street lynx rear with subframe connectors.

Power comes from a gen 3 392 hemi with heads and cam. I anticipate 500 horses to the wheels.

my question is will the subframe connectors and street lynx rear suspension be enough to handle the power without twisting? I would like to run nittos, but I want to
Be sure that the frame is rigid enough to handle it all..