Great idea. I did it. It has helped me alot and makes it quicker for me to tune up the carb. Just a simple thing I picked up years ago from Edelbrock. Now theres much better systems out there.
Though I have no probelm with the Edelbrock A/F meter.
I also use a vaccum gauge next to it and take a look at it when accelerating to see the ratio apon when the vaccum spring for the rods are suposed to over come the vaccum to provided more gas. (When the needle rises out of the jet, enrichment.) Just to try and dial it in better.
Tune to the idle your going to leave it at. If your engine idles at 1000 rpm, then set it up from there. Though that seems a bit high for an idle.....If it makes it easier for you, then do it.