The issue I would have running a carb is when the weather changes so does the mixture since there is nothing to compensate. If I dyno and get a 12:1 AFR, weather changes, and it pushed me to 13:1, I would be over power.

Michael, how do you feel about out of region (CO) guys running with us, considering they are hitting the dyno at 5000ft. When BCurtis was at MSRC last year, his car was very strong, I'd say he was 10hp over based on how he pulled, I think he even switched to a smaller restrictor too.