Maximum Power on Stock RD Coil Pack?
 

I've seen people running up over 400HP in their Tiburons, and heard of some insane beta swappers in PR with 600+ and I got to wondering:



What's the maximum power level the stock ignition coil will support? You can close the gaps on the plugs a bit, but how far can you get with that, before you have to call up MSD for a replacement ignition coil system?