67 twin turbo dart

TT5.9mag said
What’s the target afr when it goes lean? And how far off the target is it? That should tell you how much you need to add.

I have it set to 12.5 target, wide band show 22 which then the safety kicks in and shuts it down. Here's the current fuel setting just added more fuel but now that's its raining, can go out now.