This old 1996 Ford Big Block is getting a little frustrating!

Only a couple variables left that can possibly explain POOR ENGINE VACUUM on this freshly rebuilt V8. I do a cool experiment on the MAP sensor with a tip from Eric O from SMA.

Then I find a KNOWNGOOD '94 Ford Big Block to compare some data.

Then we do a followup discussion to address some great viewer comments :)

IVAN'S PICO WAVEFORMS:
https://drive.google.com/drive/folder...

PHAD PRESSURE TRANSDUCER:
http://www.pinehollowdiagnostics.com/...

ACTRON VACUUM PUMP:
https://www.amazon.com/dp/B0009XQUK2?...

HAPPY MEMORIAL DAY!!
Ivan