I"ll make this as short as possible . . . . a few weeks ago we took my stock d16z6 motor out that had 145k on it, and I slapped in a fresh y8 block that had like 30k on it, but I still kept my z6 head. Before we pulled the motor everything was good . . . at WOT I was running rich, and while cruising I would run stoich . . . .
Now that we got my car running with the y8 block I was watching the gauge lastnight (I know it's not 100% accurate) and it was barely reading Lean. I got DSM 450's still in my car as I will be boosting as soon as I get this LEAN problem fixed. At -34 on my vafc I use to run stoich, but now it runs way wicked lean.

If I add fuel and take it down to -22 I can sort of get it into the orange, but what could be causing my car to lean out so bad? After we start it and let it sit for a bit it just eventually dies out like it's not getting enough fuel, but why would this all of a sudden just happen out of no place?

Any and all help is welcome . . . I would like to get bosoted tonight! I got everything ready for boost . . . I just need to isntall my turbo manifold, and intercooler and that's all.

I do currently have the walboro 255lph just so I don't leave anything out that might factor in with the Lean problem.

AIM:vtec92civic

Thanks Everyone!