I've had bad experience with Magnecor wires and my MSD ignition system. Seems to induce misfires at around 8 PSI. Resistance on the wires was well within spec, but still awfully high. Far from a stock application, but YMMV
The BEST wires I've used were the OEM ones, but they would burn up prematurely with my MSD box. In lieu of the stock wires, I use Accels. 7922R is the part number for the red wires I have. 7922B for blue, 7922Y for yellow.