Engine swap put a vortec motor in non vortec truck and runs horrible

[russk1981]

Advancing timing and bumping fuel pressure is just a bandaid. It usually will work but a tune will do ten times better on reliability and performance. A moates Autoprom is like $300 and chips are $5-$10 and reusable. You can't buy a good PCM or Tuner for that price anywhere. People are willing to help you get it tuned well if you are willing to meet them halfway. Read the NewB posts and stickies. It seems really hard at first but it gets easier, you gotta make the leap though.

[gmc1994]

my bandaid will hall ass with no problem and no service engine light on

[dave w]

my bandaid will hall ass with no problem and no service engine light on

I really wonder what the AFR's are with the Band-Aid?

Power Enrichment - PE measured with a Wide Band O2 Sensor, see attached.

When you know, you can really GOOOOOOOOOOOOOO!

dave w