Step 1. Put your MACs coil in the scrap
Setp 2. Find an original Ford coil and send it to skip.
These reproduction coils are not reliable.
harry, I see you are a new member. Welcome aboard the Ford Barn! Skip Haney down in Florida will rebuild an original Ford coil that will work. The reproduction coils just do not work well. You have come to the right place for all your flathead queries. We'll be glad to help you in any way possible.