Time to give up on the Thermoquad?

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While a new bowl maybe super hard to find, taking your centesection and having the surface milled much in the same way a cylinder head is done would fix the top half.

The bottom half has an issue even with the well s removed. There are grooves on the bottom.

Has anybody ever used JB weld in the fuel bowl?
I used it on the front to fix a crack. The JB is on both sides of the bowl. No issues.

I used JB weld on my 72 TQ, it seems to work fine but I haven't put it on the motor yet. It's going on my 360 this winter. I had a problem with those wells too, they are a PITA to get placed and sealed correctly.
 
I think the next time I do well plugs,I might just take a scrap bowl and try something different to seal it. Maybe tap the well bottoms for a threaded allen plug and epoxy/jb weld it in place.
 
I'm awaiting those wells under the primary jets to come loose again so I can tap them for a Holley jet.
 
I'm awaiting those wells under the primary jets to come loose again so I can tap them for a Holley jet.

Not following. That wont fit the well, will it? You just want to be able to run a Holley jet, and not having the well in the way makes it possible to do the mod, correct? Would you still run the metering rod?
 
Not following. That wont fit the well, will it? You just want to be able to run a Holley jet,

It won't? LOL, are you sure ??????
Yes, run the easy to get Holley jet.

and not having the well in the way makes it possible to do the mod, correct? Would you still run the metering rod?

Correct. Otherwise, at least for now, not that I have looked for it, the tap is tappered. I would need a bottoming out tap (Flat, not tappered) to do the work. Then flip the carb base over and get all the shavings out.

I'd rather the well bottom gone myself to do the work.

Yes, run a metering rod. The rod set is adjustable in height on a TQ. So extra jet height is not an issue. (Same if the jet is shorter. Adjust the rods downward.)
 
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