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  1. Sounds great, stock OS it will be, thanks again...

    Sounds great, stock OS it will be, thanks again for the help, you have saved me a bunch of time as i wanted to have this stuff roughly sorted out before i started pulling my truck apart.
  2. Thanks, i will likely do the work to swap to the...

    Thanks, i will likely do the work to swap to the 411. I will work with my tuner who has experience with 98-00 BBC and likely go with whatever he suggests. At this point i don't think i am really...
  3. I am thinking i will likely add the 411 to my...

    I am thinking i will likely add the 411 to my small list of upgrades. I am assuming i can just start with the 8.1L file with the stock OS and go from there as i can always upgrade to a custom...
  4. I am planning to have a shop help me with my...

    I am planning to have a shop help me with my tune, so i won’t have to figuring out how to make this thing run on my own after i change the cam and swap transmissions. But I will likely want to play...
  5. I have looked thru 454 and 8.1L files and i can...

    I have looked thru 454 and 8.1L files and i can see there is a lot more going on with the 411. I have to say I am a little concerned that the upgrade may complicate my system a little as it looks...
  6. I wasn't too sure where to start, but you have...

    I wasn't too sure where to start, but you have given me exactly what i was looking for. I will download the files and take a look at the differences. I can see it will likely only take one or two...
  7. Thanks for the realistic input. I have not yet...

    Thanks for the realistic input. I have not yet had a chance to use EFI Live on either PCM, but i do have two 454s (98-00) and a Suburban with the 6.0L, so i will see how EFI live works on a newer...
  8. Is the 411 PCM upgrade worth it for only basic mods

    New member here. I have read thru some of the forums and i can see that the swap to the 411 PCM is a no brainier when major upgrades are planned, but is the swap worth the effort when only basic...
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