2000 year Blackbox pcm tuning abilities?

[Greggor55]

I tuned the black box in my 98, I promise it works.

any way you can tell me how you got the timing table to adjust? I adjusted the base spark and went for a ride to log the changes and when watching the spark graph I am 5 degrees short of what I changed on the main base spark table...any info would be appreciated! I have a 2000 express 3500 with the 454 and the original black box PCM btw.

 

[Supercharged111]

any way you can tell me how you got the timing table to adjust? I adjusted the base spark and went for a ride to log the changes and when watching the spark graph I am 5 degrees short of what I changed on the main base spark table...any info would be appreciated! I have a 2000 express 3500 with the 454 and the original black box PCM btw.

Just going off of memory here, but in EFILive base spark is not what you want. It should just be the main spark table or named something similar.