[Woodz428]

You are limited to 351W based engines for several reasons. This would include headers, but also frame design. I had played with the idea of a 289 (like the original), but after checking things out it would have been a fabrication exercise notworth the return. The hood height also limits what can be put under the hood. As mentioned, there are several 351W derivatives that could fill your needs, but I think Roush has a year warranty.Not much, but long enough for any flaws to appear.