The 93 TB should have a throttle stop screw. And it's actually accessible. 
I don't know about the differences in the ACT's. I only have read the tutorial posts about relocating the ACT into the air box. I hate to say it but like Grady mentioned, a search reveals a lot (better than me regurging info about something I havent done).
Good luck.

I don't know about the differences in the ACT's. I only have read the tutorial posts about relocating the ACT into the air box. I hate to say it but like Grady mentioned, a search reveals a lot (better than me regurging info about something I havent done).
Good luck.