Sorry about typing the ""3.1415 x main jet x pvcr = volume"" because I was in a hurry and I typed it wrong. The formula that I found was "3.1415 x jet x pvcr /4 = total area" but then I found that just multiplying the main jet and the pvcr gave me what I was looking for.
The only time that I am seeing the 16+ A/F is during medium accel "only" when the vacuum falls under my pv rating. So when the pv is open is when I was seeing this 16+ on the A/F meter. This is why I am changing to the richer pvcr's.
My main jetting is still a little rich at 14.4 and that is why I am dropping the main jet by 2 to see where the A/F falls. The mains were showing 14.0 then I dropped the main jet by 2 to give me the current 14.4. So now I am dropping the main jet again by 2 hoping to get me in the 14.6-14.8 range. This is the same chart that I showed above. It appears that my mains are starting in around or after 60mph (referencing my past charts) - 35mph=14.6 - 40mph=14.4 - 45mph=14.8 - 50mph=15.0 - 55mph=15.2 Above rpms can be changed with transition circuit tuning changes.
- 60mph=14.6 (3100rpms) [mains starting?]
Below rpms can be changed with main circuit tuning changes.
- 3500rpms=14.4(60 jets) [was 14.0 w/62 jets, was 13.8 w/64 jets] - 4000rpms=14.4(60 jets) [was 14.0 w/62 jets, was 13.6 w/64 jets] As you can see by the jetting progression, the 58 main jets should get me to where I want to be for the upcoming cooler air temps.
