Happy to report brake booster did cure the issue. And more interestingly can indeed cause a brake pedal to drop to the floor... I think the turning point was when I had a rock solid pedal with the car running brake booster disconnected. Thank you all for the input!

Thank you for reporting your results. Stored in memory banks. :thumbup:

Anytime. Happy to pass on my frustration LOL

did you have to replace the booster? must be very nice to have brakes that do.

Yes I swapped out the booster and its very nice to now have positive results. It was getting extremely frustrating... Now on to valve cover and upper timing chain gaskets