Back in the 70's I helped a friend of mine change his 65 Corvette to a solid rear axle, and we put drum brakes on it too. We were drag racers, and thats what works.
I also owned a 69 Camaro, and pulled the 350 out and put a 427 in it. If I still owned it it would have a 572 crate motor in it so I'm not the one to ask who needs a 650 HP car.
I can also say my Nephew's GT 500 is a real blast to drive!