Em, I used MSD's universal wires, and they have a nifty vice clamp to crimp the terminals in place. Their clamping tool is also a cutting gauge to get the rubber cut back from the center conductor right, and then crimps the terminals exactly right in the vice. I'd buy them again - in fact I DID buy them again, because I cooked the first set with a tuning snafu that overheated my headers and melted two or three wires.