Thermoquad question

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9027. The Vannth listed as a 1-3/8 primary it it has the 1-1/2.
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As OP, I just happened to see back in post #25 where I gave a rundown on how my Thermoquad is set up. It says I drilled my accelerator pump nozzles to “.138”! When I meant that to read .038”!!!

And as an UPDATE:
I did have to replace the Bosch O2 sensor for the A/F gauge which solved my quandary. Before, I was getting inconsistent readings ...Made for some head scratching!! Apparently it’s not too unusual for these sensors to go bad even with relatively low mileage.
 
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