More coil hints for the day. Any oil filled coil should be mounted vertically, not horizontally like the 240 coils. Read the instructions. If they need to be vertical, it will be stated as such.
The MSD instructions have this to say for the 8200 series street performance coils.
"The Blaster Coil is designed to mount in most factory canister coil mounts. MSD also offers a Chrome Coil Bracket, PN 8213. It is recommended to mount the PN 8202, PN 82023 and 8223 coils in an upright position. The High Vibration Coil, PN 8222, can be mounted in any position due to its epoxy potting compound. "
Putting them sideways likely exposes more of the windings out of the oil bath than when its vertical, making accelerated overheating deterioration an issue. This is a gues, but makes sense to me.