Thanks Chaps for the insights, now I understand better what I'm dealing with the next challenge ideally is to integrate it with the existing hardware, which is where I'm struggling. The screened cables and connections do not lend themselves to easy modification.
I'm a Brit living in the US and as such my truck is offroaded in the canyons and mountains of Nm, Arizona and Colorado, up passes in excess of 12,000ft as I use it adventuring.
I'm not a purist who seeks to keep the engine bay 100% authentic, but I am trying to retain my perception of the OFFROAD robustness of the screened system particularly, but is there any merit in that really? Has any one adapted the existing military ignition system to maintain the robustness or just reverted to the civvy 12v equivalent coil and distributor.
Thoughts welcomed
Thanks
Fraser