We have a return fuel system and I am currently running woody and robs fuel fix with great success. I have recentlly updated my dashdaq software and I am now able to log boost pressure tp the tenth and have found that the magic number for my car to start to lean out is 18.7 pounds of boost. I am now using this as a trigger point which means that my additional fuel will now be supplied at the right time no matter what the da since depending on the da we build boost faster or slower which made setting the trigger point very difficult.