It never took me 500ish hp to run 11.55 @ 117 with my 64 convertible (3 point bolt in roll bar), and it had no roof BUT I did flex the rear quarters and had to have them straightened out by a first class body man years later. The 3 point roll Bar was only for the driver, not for chassis strengthening. This was at a newer track in a town in Missouri "Mid America Raceways" back in the late 60s. The pass was made with fresh 9" slicks and a 4 speed trans. They kicked me off the track shortly after that run.
A friend had a 1979 T-Roof TA and he pylon raced. His roof pieces barely fit in the car after that single week-end of racing. So the body WILL MOVE.
If the car is a beater, no big deal.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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