Thermoquad choke question

Professor Fate said

Ugh- I feel for you. That can be a real Be-otch. If you've got an O/A torch, try heating up the snapped bolt/drill/EZ out cherry red (but don't melt it), then let it slowly cool- it can take some of the temper out of the steel and make it easier to drill out.

Click to expand...

I was going to try this next, getting the manifold hotter than the bolt, and put some Kroil on it while it's hot. I'll do this several times and see if I can tap it out. I have a little nubbin or two to work with so we'll see what happens. If this is a no-go I'll either go the EDM route or add the bracket at the carb bolt as described above.

As always, thanks for all the info so far.