When you feel your car doesn't have enough horsepower, Hennessey Performance is definitely one of the solutions. And when your car may just so happen to be a Chevrolet Camaro Z/28, then Mr. Hennessey and crew will be all too happy to give your ride an extra boost. Powered by a 7.0-liter LS7 V8 that's good for 500 horsepower, the Z/28 is certainly not something that can be handled by everyone. Then again, some owners feel the need for more than 500 ponies.

Hennessey believes this as well. Fortunately he's very familiar with that LS7 from which it's not so hard to squeeze an additional 130-hp or so. All told, the Hennessey Camaro Z/28 produces 636-hp. And now John Hennessey himself is here to give us a breakdown and some time behind the wheel of this all-American beast.