I’m so sorry about John passing away he and others that are gone now really helped so many of us learn so much about our favorite engine.it reminds me of the time I was at a car show locally about 20 years ago ,an old guy visiting the area from California talked to me about hopping up and racing the model A Ford ,that was in the 30s and 40s. That generation is gone now and pretty much the knowledge they had. I owe most of my yblock knowledge to the great guys on this site that take the time to help me and others. Thanks to John and others for all you have done and continue to do