>I have a 64 Thunderbird with a rebuilt 390 (stock) with aftermarket
>intake, carb, and cam. I read a post somewhere that adding a
>high-voltage coil can cause the spark to jump and thus burning a hole
>in stock pistons. The idea is that the engines were not designed to
>handle more than 30,000 volts. I just want to know if anyone has an
>opinion about this? Do you agree with this assessment?
>
Totally bogus!!!!!!!! The spark will only jump to the gap of the plug because it is closer, and, there isn't enough spark energy to do that kind of damage even if you broke off the ground side of the gap, and it did arc to the piston (Which it still won't)