Slant 6 Turbo 68Dart Project

Well, like stated earlier, the afr gauge and sensor is calibrated, and just now I got her running.

You'll never guess what it was ----- basic carburetor stuff. YES. I forgot to adjust the idle circuit at all. It was squeezed all the way in... and the idle set screw was not even touching the arm. Screwed that in a couple times, reattached fuel pump, set float bowl, and she runs.

So with the gauge calibrated, on start up and warm up - I get 18.5 then it drops to 17. If you push the gas a little, it jumps down to 13, and then back up to 17.

Is it supposed to be this lean at idle? I'm assuming the idea is to have it near 11 or 10 at cruise and boost?

I adjusted the set screw on the bOV as well. It doesn't have a high pitched screaming as it did before. It is less audible. I'm thinking the pressure overcame the piston on the bov and was leaving it slightly open. I turned the wastegate preset in a little bit. Can't wait to get the new wastegate setup with the more simple set it and forget it adjustments.

glad to hear you got that gauge straightened out. they are awesome. afr at idle is going to be what ever the engine wants there is no real set parameters for that. if it runs good doesnt stall and doesnt burn your eyes then its good.
ideal cruise afr is between 13-15. under boost you want to shoot for 11.5. to accomplish a good cruise and boost afr you are gonna have to mess with the power valve channel restricters.