Thermoquad choke question

Aha! Thanks, I will check out the current choke. I still have to remove a broken stud on one of the choke bolt holes, and if that's not enough fun someone already tried to get it out. There's a drill bit or easy-out in there too. Funfunfun! I'll be doing a different thread when I get closer to starting this project, I still need to figure out a cam and finish gathering the other parts.
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.