2008 LS3 M6 Corvette misfire at 2700-ish rpm after cam install

[GreyMan]

This is my first post, so hopefully the attachments work correctly.
I have a misfire issue at light throttle when rolling from approx 2600 - 3000 RPM. Fairly violent backfires out of exhaust.
As best as I can tell the misfire does not exist below there, or above there.
I have changed plugs (gapped to .032''), coils, and wires.

Since the issue isn't present at other RPM I don't think changing EOIT would help, but I may be wrong. I have the ground hooked up properly to the block, and the passenger cylinder head. I am considering installing a jumper to ground the heads to each other.

I'd appreciate any ideas you guys have, and I would appreciate any input on the tune as I am pretty new to this.



MODIFICATIONS.txt






ride to work.hplPOST DYNO MODS.hpt2008 c6 m6 ls3 stock tune.hpt

[dankmac]

Did you resolve this? I have this issue after putting a cam in my car. Thought the timing was going too low in that area. Added a bunch of timing and it still does it. Never read anyone having this problem before.

[rhighfil82]

You might check to see if you're running rich.