EFIDynoTuning Forum

Currently trying to return a new to me truck to stockability again. It was running on an SD2x EEC, with what i assume is a 5.0 manual tune, spout out, timing locked to ~30. Not the best home mechanic.

Best replacement i could find was a SD47B EEC with a 5.0 E4OD stock tune. I'd rather start with the right calibration on this correct hardware.

this is one from my lightning

Here is a 1994 351w E4OD non-lightning SD48B.
I had ran the stock C3P2 on a stock non-lightning 351w and would pop/backfire through intake in certain conditions.
I believe LAD1 is the newest code (1996) for 351w E4OD.

Thanks for the help. I was able to modify a Z2D tune with data from the LAD1 and it worked perfectly. Truck is up and moving!

Came into another sd48B, with stock bin LE01. Is it just me, or are the 351w tunes (LAD1, KID2, and this LE01) not reading on the A1C.xdf?

they arent going to its a different strategy

you have to use the a1c files provided in that thread

yaboyhalle wrote: ↑2025 Aug 12, 22:38 Came into another sd48B, with stock bin LE01. Is it just me, or are the 351w tunes (LAD1, KID2, and this LE01) not reading on the A1C.xdf?

Thats L - lima E - echo O - oscar - 1 (LEO1), not LE zero one(LE01).

That is 100% identical to KID2, exactly.
Very different than A1C.

It seems a bit too thin to be an Oh, but I wouldn't know what font they're using. Either way, I was just looking to find an A1C bin for a 351, as adapting a 302 tune isn't as easy.

The O do not have a line through them like the zeros.
Googling these codes, makes a difference.
I tend to be a bit pedantic with this stuff.

yaboyhalle wrote: ↑2025 Aug 29, 20:19 It seems a bit too thin to be an Oh, but I wouldn't know what font they're using. Either way, I was just looking to find an A1C bin for a 351, as adapting a 302 tune isn't as easy.

The A1C.bin is located in the first post of this group.
You must use the matching XDF.