I just bought a set of Beru ignition wires and have them sitting on my (80 SC) motor ready to install. Is the magnecore a better product and worth going back to the store to return the Beru? I don't drive it hard but I don't want regrets.

 

The Beru wires should be a like replacement for your original wires, barring if you had metal-mesh covered wires, which was an attempt to fix the cause of blown airboxes - note that wasn't the cause. Magnecor's are arguably better wires. If you do a search, you'll find many who have installed them and been quite pleased.

 

If you can get your money back for the Beru I would go for the Magnecor.