Beginner's Bucks-Down /6 Build...Suggestions Welcome

And you can tune a car to run aggressive turbo boost in certain conditions and have it survive fine, and then it'll blow when conditions change if you run it too close to the edge. I tend to keep my turbo rally engines on the conservative side, use known tuning, and keep some adjustability in the field 'just-in-case'. Going from humid warm air to dry, cool fall air requires an equivalent of 3-4 points of octane change or the equivalent change in boost and fuel control. Yes, sticking with NA is a good idea!