Being that, for some reason, we're talking 3.4 turbos, I don't believe there is a 3.4 DOHC ECU that can adjust individual fuel trim at high RPM. First off, most swaps run the 9396 91-93 MPFI injection, where it fires either one bank, or all 6, at the same time (Depending on how it was wired by the swapper, factory fires by banks, I know several swaps combine the two banks). My swap uses the 94-95 SFI injection, but from what I've heard north of 4,000rpm it batch fires the injectors anyway. I'm not sure if the 96-97 OBD2 computer runs SFI to redline, but I don't think there's any DOHC swaps using this computer, though obviously the 3800 guys are.
So adjusting the trim on one fuel injector is a viable option, but only on computers that individually fire their injectors all the time.
Which makes this manifold the most practical way of equalizing air/fuel to every cylinder for me (If it works, and even then it wouldn't be exact of course). If the manifold does what it is supposed to though, it'd be better than what I've got now. It'd be slightly difficult to maintain runner length, I really don't want to cut that down any on my car. My turbo already comes on pretty late, and I'd like to keep the stock off-boost performance I have now.
Before I did this I'd put my independent throttle bodies on though. I likely won't ever do either one, I've pretty much lost interest in my car
