Wideband O2 Sensor location advise

I bought a AEM Wideband to install in my 67 cuda in order to nail down the AFRs.

What I have is a Eddy Airgap intake with Holley 750 HP carb, TTI headers, and X-pipe.

I don't have a open spacer under the carb in order to combine both left and right venturies for a correct signal to the O2 sensor. I have such close hood to carb gap that I can't install a open spacer.

The question I have is where is the best location for the 02 sensor? The question almost answers itself because there really isn't anywhere else to install it.

However... you might know a alternative or something that I'm over looking.

Thanks
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