I have a 73 K5 with HEI, with the coil mounted on the cap, will this coil work with it, or no? http://store.summitracing.com/partdetail.asp?autofilter=1&part=MSD%2D8226&view=1&N=4294908395+4294908216+4294840140+0&appfilter=1 It looks like I'd need a different type of dist. cap to make it work, but the MSD site and Summit have me a bit confused. So can I use this coil? what might I need to do to make it work?