i never see any thing like this .but it was one of them$35. dollar dist? in its self may not be bad but there cheap. i would first try a good used GM dist that ran good or buy a new coil and mod that is a name brand parts to use in your dist. i would look at the spark plug gap way to big . bad coil . bad mod.you are just running only one 12volt wire to the coil dist cap ?