The Pazon fits very well under the top frame tube in front of coils. I use two zip ties to hold the unit on and have had no issues with my bikes. The 1967 still has the rectifier. On the 1965 I have the Tympanum mounted to the bottom of the battery. Out of sight, plenty of room, and it is only a short distance to the bolt holding the rear frame to the main frame, where I placed the ground wire.
that's an excellent spot for the module ... though a bit buried .
most folks seem to shy away from removing the gas tank if at all possible .
but it a fit and forget module .
if fitted here ... no splices need to be made to fit the unit .
the pazons lead wires are long enough to reach the points hole ... via front down tube
, a ground point at or next to the battery ... and the coils
are within inches .
original harness wires deliver key/kill power at the coils too .