HI guys this is probably something easy but i dont know,I have a 68 with a HEI so theres no old style coil so the wire diagram shows to wire it to hot side of coil the to the starter small post and the purple wire to the other side small post and then batter cable to mail post, well if i hook it up that way the coil wire side starts to get hot and burn the wire when key is on and it will not turn starter over please help Joe ps thanks