One option is this. Power Commander V - PTi to handle beyond 100kpa and keep the Delphi.Ron, Thanks for your opinion. How about if you give us a step by step on the install & tuning of the piggy back controller of your choice so we can all see that option ?
BTW James Ramsey is an independent tuning provider specializing in race / boosted applications for Harleys
Problem is , by the time you go through all the bs and costs, might as well go AlphaN and be done with it. Be it Tmax or DTT. The path of least resistance when it comes to calibrations, at the cost of losing knock detection of course.