I like Butch does, use a coaxial cable crimper, about the same size wire, and inexpensive. The trouble I encountered was the clip that you solder on had a triangular piece that sets inside the wire once you push it on, however I had trouble getting the braded cable twisted enough so that the thickness of it would fit thru the triangular hole that is there and the traingular piece that fit in the hole that will go inside the spark plug wire, I managed after some time and got them soldered.
Note: I used the lacquered wire type and will never use again, I have a 47. Extremely difficult to work with because of the pushing and pulling and trying to get cables fed thru wire looms and thru crab cap, not so pretty when done, the lacquer cracks and isn't pretty. I assembled everything before I stuck it on the car, but I had taken everything off of the motor to detail so it wasn't so difficult with everything else in the way like coil, generator etc. The only wire that came out looking like it went thru a garbage dispossal was the coil wire, because you have to feed it thru that finger hole in the boot. I used dawn liquid soap here and there to get things to slide easily here and there when needed, just put a tad on fingers and put on wire where needed. I never had to cut any wires I sized them up and went from there I labeled wire at both ends with blue masking and sharpie marker to keep them numbered correct when putting in cap and pulling thru loom, even though the bottom half of cap is numbered.
Good Luck, Henry was not kind to us when it comes to this task. lol!!!!
