By "didn't respond so well"; what do you mean?
By did not respond so well is that this motor likes to run a lot of fuel, if trying to lean out it starts to buck, it likes it rich, I had to target a 12.5 afr at cruise so its a flat afr range, typically one might get 13.5-14.5 at cruise for efficiency, . At WOT I have not yet experimented to see what develops the most power, it is not like the old iron head is a power horse so I am basically going to look for efficiency. The EFI has no problem developing power, I can get it to run much better than a carb and it actually use more fuel than a carb. So far my challenge is finding the best lean range the motor can tolerate.
This is a very generic table:
I tried something like this below and the Jeep did not like the low AFRs at less than 60% fuel load.
What I have circled are what the motor most often uses.
The idle zone on the Jeep motor is basically the 6 lower left boxes and then the rest of the table is utilize as one accelerates through the RPM and load ranges.
I am now running a flat table with 12.5 across the board except at idle I am about 13.0.
I have since narrowed my table down to 4000 RPM to gain some resolution, I plan on starting with my 12.5 afr based tune and making small adjustments to gain best lean cruise, then experimenting with the WOT.
I am basically looking to see if someone with a known good running system knows what their AFRs look like on a similar set up, same cylinder head/ manifold etc.
Cruising at 1500-2000 RPM WOT from 3-4000 is what I am looking for to get an idea of what has worked best for others.