In your case, there is a few options. 1) go with a few less HP. 550? your kidding matt. im leaning towards 400 as the limit if you live in/near a city. 2) build a good frame under your camaro and bolt the shell over it. Pro70 is the local expert on this approach. 3) locate an older beater camaro and use it as a template. Salvage titles are Always an option if their clean enough. With the 2 bolt block, a 4 bolt conversion is always a good idea. Forged/cast iron cranks shouldnt be that hard to get your hands on, so get one asap. Forged is always better-of course.