Trying to use a timing light to set ignition timing is extremely difficult on the Bugeye given that the pointer on the timing cover used for alignment with the notch on the crank pulley is at the bottom of the engine.

Tom Colby at Speedwell Engineering makes a stainless steel pointer that can be used to move the timing process to the top of the pulley. More information about the kit and its installation can be found in this post under the Personalizations posts: https://valvechatter.com/?p=13529