I resolved my issue with the Whisperflo and for anybody following the thread, the issue came from a missing diffuser o-ring. Although I knew the o-ring was missing when I took the pump apart, I was too lazy to drive to the distributor and figured it couldn't have that much effect on the operation. Again I'm a seasoned tech but time is money. I did however find that the pressure increased to 22 PSI and the paramount pops up began working another issue he wanted me to check out. Both the vacuum and pressure increased and all because of a little o-ring. Guess those engineers have me beat, and you can be assured I will have diffuser o-rings stocked in my van from now on. Thanks for the advice sent to me and I hope I can provide others with advice in the future.