The biggest issue I have found with the pro-flo system is a complete lack of data logging. As a novice in EFI I thought hey I wont need data logging on a self learning system. Boy was I wrong. I think to myself every time I drive my car now "it sure would be nice if I could look at a chart or table and determine why it stumbles at this RPM or why does it have no power at this rpm". Trying to record the gauges and make a determination frame by frame is a PITA. Even the terminator system that Holley offers has some degree of logging. I am seriously considering buying a Holley ECU and reusing the Eddy manifold and sensors.
