When I went shopping for my EFI, I was pretty set on a PC controlled unit and then a friend of mine that is a buyer for a national speed supplier told me the EFI companies are moving towards the little control modules. He attends SEMA every year and showed me all the common units and told me unless I was going to race, stay with the plug and play. Since I am using the MSD Hemi Engine Control I went with the MSD EFI so any problem would only have one stop for a solution. I was convinced that PC was the way to go but maybe it is becoming old technology.