The Ignitor II Coil is custom built to work with the Ignitor II Electronic Ignition Kit
Tech Note: What is the difference between OIL filled and EPOXY filled ignition coils?
OIL filled ignition coils must be mounted upright. EPOXY filled ignition coils can be mounted in any direction, even upside down.
For Racing applications, we recommend the EPOXY filled ignition coils.