93 GM hesitates bogs with cold engine

[magwheels]

93 GM hesitates, bogs, hard time getting to 30mph when engine is cold. After about a mile or so (@0to 20F) it runs fine.
Starts fine in cold weather (some slight extended cranking)
Good fuel pressure at idle (33-35)increases with load
No codes
Removed TB and cleaned EGR passages
Ran some Seafoam through vacuum line
Soaked intake with Amsoil PowerFoam
Tightened up some vacuum / PCV lines, intake clamps etc.
Wires look good
MAF looks clean
Any other ideas?

[DriverSideImpact98]

93 GM hesitates, bogs, hard time getting to 30mph when engine is cold. After about a mile or so (@0to 20F) it runs fine.
Starts fine in cold weather (some slight extended cranking)
Good fuel pressure at idle (33-35)increases with load
No codes
Removed TB and cleaned EGR passages
Ran some Seafoam through vacuum line
Soaked intake with Amsoil PowerFoam
Tightened up some vacuum / PCV lines, intake clamps etc.
Wires look good
MAF looks clean
Any other ideas?

Hows it shift?

[magwheels]

MAF was dirty

Layer of fine dirt on elements, runs great!

[79lincolnlover]

Pics?