Dilemma

What? You can run 11:1 on pump gas. You need to set the timing down. Big deal. Why spend the money and time to change motors when you have a perfectly good 408 now? I drive mine damn near every day it isn't raining. I just set the timing back to 26 degrees today so I can run 93 octane without pinging. If I run 110 octane race gas, which I do quite often, I set it up to 35 degrees. I am 11.8:1 compression, 500hp and I am telling you I drive this car almost like a daily driver. Drive your car. Your car will thank you and you won't be able to wipe the smile off your face.