X2
My imagination will run wild with the symphony of noises my A can make. Luckily a member of my club (read the thread "Have wrench, will travel") is an expert model A mechanic. Before this summer season I took him on a 5 mile ride and asked him to just listen, and let me know if he heard anything that indicates a problem. He said it all sounded normal to him, "But what kind of gas was I running?" His nose told him that I was not running "normal" gas. I had filled the tank with racing fuel (the only non ethanol gas available around here) for the winter. I was impressed!
After his "all is well" diagnosis, I relaxed and enjoyed my summer driving much more.