Not Ranked
I started with a Roush 427R having 561 HP at the crank. The way Superformance was doing the exhaust and fuel delivery at the time in 2005 when the car was put together it ended up producing a touch over 400 at the wheels. I changed the headers, side pipes, fuel line, carb and air cleaner and it put down about 475 at the wheels. I did also change to the aluminum flywheel, near solid motor mounts and stronger half shafts too. With the rear Mickey Thompson ET street drag radials in the 275/60 15 size it worked pretty good. I could see having another 100 wheel HP for kicks and still have the car managable.
I know quite a few guys with highly modified exotic cars. The Cobra with 475 at the wheels is pretty quick. There's very little on the road that would be quicker to 100 mph, but those drag radials are critical to use in my opinion.
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