I've never had much luck crimping stranded copper wires, bumblebee or black (bumblebees look cool, but I've never understood how one set of stranded copper wires could be 'high performance' and another not; I think they're more of a marketing gimmick). If you have an original type distributor cap the pointed terminals screw into the wire, and at the plug end the resistance plug caps others have mentioned do the same (there's a prong that looks like a sheet metal screw inside). I recommend you put some silicone/dielectric grease in both the distributor cap holes and the plug cap holes to help prevent corrosion. AFAIK, the wires are all 7mm, which was a de facto standard for cars of all makes up until, oh, the seventies or so when there began to be issues with the radios more people were putting in their cars and we went to 'suppression' wires. I use resistance plug caps and resistor plugs, totaling about 30Kohms.