Quote Originally Posted by BryanL View Post
This makes me curious about the carb guys. Do you guys have to have multiple dyno runs with different jets? Or do you run the same jets all season?
The rules state that a carb car can change jets to facilitate tuning. I take this to mean that I can change jets when necessary to maintain a consistent air to fuel ratio. Before a dyno? I don't have that answer.

7.21.1 The jets, metering rods, needles, etc in the stock / spec carburetor may be changed to facilitate
tuning.

I typically only change jets for altitude changes. With a single jet size I see 12 -13 A/F from Dallas to NOLA. But Hallett and Colorado are very different jet sizes to maintain that A/F ratio.