Riddler said

In all honesty an air to fuel gauge like you posted DarTT is useless for tuning. This is what's considered a narrow bang A/F. It bounces around like a ricer show.

What is required is a proper Wideband Air/Fuel Gauge. Here's the best on the market. AEM UEGO.

http://www.aemelectronics.com/wideband-air-fuel-systems-15/digital-wideband-air-fuel-gauge-25/

Riddler

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blue missile said

67,
sort of, those look like vacuum tubes, I am also getting a dash for the earlier cudas and valiants to send their way. I am still waiting on my gauges, and may have to get a few they dont offer yet elswhere. As soon as mine arrive Ill post pics
Andrew

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