It's really hit or miss with the rfi issues. I have seen all kinds of stuff cause interference on all the systems. Best recipe for success is to start with the correct ignition components, and then go about wire shielding if/as needed. I have seen an MSD box make a garage door go up and down...the automotive world is full of electronics "noise" but...95 percent of the efi systems I have sold or installed have proven pretty trouble free however. I again like the sniper, but have had decent luck with others also.
