Interesting Info For EFI Guys Experiencing EMI/RFI Issues

Like many on the board, I am using a FiTech efi retrofit. I was an early adapter and dealt with improperly packaged fuses, burnt deutch connector and failed tach driver, on 2 systems, my own and a customer. Once ironed out, the system runs well but recently has had emi/rfi issues. Since I am lucky enough to have a career electrical engineer and car guy in the family, we went through the usual band aids. RF sleeving and grounds on the signal wire, re routing wires, etc. Bottom line is nothing seems to be working. My small block stroker is stock appearing with correct 340 valve covers and OE seperators. I use an MSD E curve distributor and a tube coil (USA Made) in the factory bracket on an air gap intake.
After swapping out the coil, rechecking soldered connections, ground potentials, I came across an interesting read - Magnecor Race Wires
After discussing the issues with an electrical engineer and an RF specialist, it seems that spark plug wires could be the culprit. I am going to try a set and report back. While I have read tons about people with this type of issue, I haven't read where anybody had a real solution to repairing the source of the issue. I have a feeling the big name plug wire companies haven't really addressed this issue.
I welcome all thoughts and experiences.