Ok, I have checked all items that I could find related to the part throttle miss and everything checks out. EGR,ACT,IAC,ECT, and all related sensors. Using my repair manual and the Ford fuel injection book written by Probst I have no sensors out of range. I had the problem fixed with dirty 10 pin connectors and a small chafe in a wire causing it to go to ground. I installed a Procharger and it idles great no hunting but now the part throttle miss/hesitation is back better than ever. I have searched for any vac leaks and couldnt find any. The boost vac/ gauge reads a steady 10 to 11 inch of vac at idle. Anything stupid that I am missing?? Give me some type of direction 
