electric choke question

Holley says 7.5A with particular 4bbl I asked about as an example - people with various carbs seem to report all kinds of numbers from 1.0 up to 7A. So a circuit with at least a 10 amp fuse seems like good idea. I ended up moving mine over to the wiper motor plug for a cleaner, shorter run. Adjusted choke to slow up a bit and now it's about 90 seconds to full open. NOW.... if I can find a 1/4" open end wrench that's about 8" long so I can reach fast idle speed screw under the choke housing (or tiny hands of extraordinarily dexterous 5 yr. old...). Must be a trick to get at it short of removing carb..thanks all for comments in this thread.