Hi all, >Hanky.
Elusive misfire solved.
Sunken exhaust valve/seat # 2 cylinder.
Valve is kind of mis-shaped, very thin edged on one side -corroded!
Saw similar on a 'youtube vid'. warped valve.
Now, since these are 'solid lifter/shim type cams/valves; there is no compensation for wear.
Therefore,valve was getting less and less clearance > opening slightly when it should be closed.
Hence misfire even when 'static' compression test showed minimal difference!!!

So, bought junkyard Fusion engine,'allegedly' 89K for $650 w/ $50 core charge!?
Installed in daughter's car and sent her on way to Austin. 1500 miles and well,so far.
Fingers crossed. HTH.

 

Thank You for the update.
Always good to hear when things go well.