I would build the 455, use good parts & it should do what you want. Calling Butler would be a good idea as well, get an idea about what your plans performance-wise are, gear ratio, trans, etc. You can build a brute force 455 for next to nothing, I would steer clear of the stroker set-ups, not sold on them. For less thamn 5K you can be very happy with the results, the key is to get quality machine work done, find someone who know Pontiacs well.
