[Royce P]

Fortunately he lives in Indiana. There's a Model T engine rebuilder in Shandon, Ohio right next to the Indiana border. At Ron's they have an HCCT on the counter that is free for customers to use. I used to go over there all the time when I lived in Cincinnati just to use the HCCT. You can't tune coils by ear, that's just rubbish, sorry. Properly tuned coils often sound wildly different from each other.