No change with the key trick. It ran just as bad. I might have been a little off about closed loop because as soon as the engine get a little warm it starts to shake at just off idle. Im going to replace the MAF.

 

Just re-read your posts,

One question, have you checked the timing?

You should have the spout connector with this, and follow specs to the timing with the spout removed.

Had a similar problem with a re-man 5.8, and about 2 months after all the parts change out, it started running rough on acceleration, scratching head one day, and I hooked up the timing light, and checked the timing, and it was retarded really bad, re-set to specs, and it perked up and has been running fine since.