Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Normal
If coil is for an electro brained sparker then contact the maker or check the specs or manual which should state what ohm resistance the sparker likes to see or can tolarate then pick the color or shape or best ad PR on coils or coil pack ya like or want to afford. Coil voltage only need rating above say 20Kv as spark will jump before full advertised superduper voltage ratting is reached, unless of course in a top fueler the mixture is essentially an insulating liquid to blast a spark into.