[danny waters sr]

Here is an experience and example of good and bad air vs rpm.
We had a 8.90 car on a throttle-stop and when it went on the stop we had it set at 3800.
Each morning we would check and set it to the same rpm and a lot of times it would be diff due to air quality. We would even check it during the day and sometimes it would be diff due to air change. A lot of people could not figure why their cars would not run the same on day as it did the next (although they would just change the time in the timer to compensate)... tere is a diff in most cases.My little 283 will change quicker than most combos due to little carb and such....