I have Dyna III Electric Ingnition system and have had problems with getting spark to all cylinders. I varies, where the problem goes. I today tested coils with multilmeter and got readings from secondary unit (or what it is called, sorry for my bad techincal english), whose indicated that my coils are gone. They work for are while, when they are cold, then when getting hotter, start to fail. I am pretty sure that they are 3 Ohm coils (EDIT: They are). Now I would like to try some 5 Ohm coils (for various of reasons), so my question is; What are the options from other that Dyna coils (I am short with money and have to get this fixed before I can continue with my turbo setup)? Thanks in advance.