[rotorwrench]

While I agree in principle, I don't agree when there is a difference in altitude of operation. Ford Motor Co made carbs set for standard altitudes and higher altitudes. The reason was to make the air fuel ratio more efficient for the environment that the automobile is operating in. Most are likely standard setting carbs but there were Denver type applications.

If a person used an air/fuel meter up the tail pipe, if would confirm if it is OK or not. Any time where a different carb is substituted, there is always a chance that efficiency could change.