Something I have not yet figured out today as I just wired it up. I use the Ice Ignition 7amp box and coil and just bought there voltage boost box which puts a constant 16 volt to the coil(inductive spark). Its wired thru a toggle and when I switch it on my voltage drops 2.5 volts on my voltmeter and the switch wire to my 7amp box, but not the battery. Still need to do some more checking tomorrow, but any idea what areas I should be looking? Maybe that box just pulls a lot of current? Thanks