FYI - I know have 4 gallons of fuel thru my car at one of biggest and fastest tracks in the country. 280x135. I have not had any of the problems you are talking about.
My chassis is not bent
I have bent (1) stock pivot ball
I have yet to break a single a-arm
The shock towers have come loose however. I fixed this buy using long screws into the trans case.
The bumper has broken and I replace with the elec TC3 front bumper assy with an elec TC3 front assy and Buds Kydex.