Carter Thermoquads ~ 'More General Information'

Bewy said

I see a lot less TQs here than you do in your country. I have only seen 3 sizes of sec high speed bleeds: 0.027", 0.029", 0.039". Local Ford TQs, there are only 5 models, all 9000 series. These are 029. Majority of early Mopar TQs I have seen are 039. I convert all of them to 039.

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We played around with the sec high speed bleeds. Went from 36 to 38 then 42. It went too lean, the biggest jets we had were .156, which made most power after re-sizing HSB back to .036. Found out we needed the air door open as much as practical, which pulled less fuel into the engine. We have more selection of smaller sec jets than larger, so for us keeping the HSB smaller is convenient. I plan to change it to 35 or 34 so I can go to a smaller jet if needed. I would like to open the air door to around .900 like in the Moparts SS article but I'm not sure that will work in our case