That's not worth it. I have 3 engine dyno's and 3 chassis dyno's within a couple hours of me. I know it's only a number (a low one) but I wish I had spun my 273 up just to see. If I would have seen 250 horse I would be happy. Teens are rated at 230 horse so anything you do to them will be an improvement. Basic hot rodding will get you to 400 horse