Well to help you out, Frieburgers Camaro that finally broke the 200 mph mark has a big block Chevy boosted and it’s pushing 1200 hp. In a tube chassis, fiberglass car.
He ran 260mph in that car and not fiberglass. Typical Camaro of that vintage will weigh between 6-7000lbs for Bonneville. So, if fiberglass, there was ballast added somewhere.