Flux Capacitor Wires
The closest I've found so far are the Accel 3009 7mm Super Stock wires. While these will fit the bill for now, they are not quite right. The orange boot is not as round at the 90 deg. elbow as the originals appear to be. I will keep on looking and report back if I find better. These are available from the Amazon link at the right and I've also added a these in the Amazon Flux Capacitor Store under the Flux Capacitor Parts page.