Strip intake bolt hole
No, I don't think JB weld is strong enough for that.
Snake, if you can turn your own wrenches, you can install a Heli-Coil.
Here's how you do it:
Go to the store and purchase the proper Heli-coil (I believe a carb stud is 5/16" x 18 threads.)
While at the store ask to buy the proper drill bit needed for the Heli-coil, it should tell you what size drill to buy on the Heli-Coil package. (sometimes these are odd sizes and you need to find a good hardware store that carries them - go to your best local hardware store for drill bits.)
After you get the Heli-Coil kit and proper drill bit, go back and remove the carb from the intake.
Stuff lots of shop rags in the intake to keep out any chips.
Then remove the stud from the bad hole.
Use the drill bit that you purchased for the Heli-Coil kit. Drill out the bad hole.
Then get a tap wrench and tap the hole for the new Heli-Coil.
Then install the new threads with the tool supplied in the Heli-Coil kit. Make sure the Heli-Coil doesn't stick up above the intake manifold surface.
Then take a punch and snap off the flat tab on the bottom of the coil insert.
Now the original bolt/stud will fit in the threads and will be strong enough to torque to recommended torque.
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Basically, get a Heli-Coil kit and proper drill.
Drill out the hole.
Screw in the thread insert.
Break the flat tab off on the bottom of the thread insert with a punch.
Now you can use the hole.... :cheers: