Quote: You are correct, there were no changes other than changing the air filter element. I don't have the A/F numbers with me, they are at the office, but they were monitored on each run. I remember that the numbers leaned out just a little from the first test of each series to the baseplate only runs. If I remember the runs ranged from about 12.3:1 to 12.85:1 as the runs progressed. I will have to see if I can dig up the numbers tomorrow.
