im installing a external coil on my zc and im using the msd power tower setup i did one of these before like 2 years ago so i dont remeber the the wiring on the dist. 2 wires but which is which does say - or + im probaly going to do it tommorrow i dont have the instruction sheet and for some reason im unable to download them from msd's site ,also i drill out the spot above the stock coil install the power tower then fill the old coil output part with silicone or epoxy right? well any help is much appreciated thanks everyone.

 

the black/yellow is the +,the white/blue is the -. remove the stock coil completly.

 

Did this a few month ago on my ZC. Remove the stock coil completetly. Not only is it not needed but give room for wiring. For wire goto www.hybrid.honda-perf.org If you go to the tech page you can find a .pdf format of the Factory ZC service manual for the engine and chassis from Japapn. Don't worry it is writen in english!!!