One just has a longer wire from the coil pack to the 3 pin connector. I had to do a splice in the middle of the wire for the vertical piston but nothing some solder and marine grade heat shrink tubing couldnt handle. I just made sure to stagger the splice. The other coil has enough wire.so after reading this, I got scared and just ordered a set of Eldor packs from ebay. Just got my HS in March and plan on holding on to it for a while.
dumb question: the eldor coil each have a different P/Ns: (857084, 857501) for cyl 1 and 2.
can I easily tell which pack is for which cylinder or it doesn't matter?