setting carb with vacuum gauge

Reviving this from the crypt, as I bought a vacuum gauge and will be looking to tune Dads cuda. Im hoping to spend time effectively as I wont have a lot of time and wanna drive it asap.
Engine is 273 4bbl with an aftermarket Eddy 1405...we added a choke as an afterthought. Can anyone add to this?? Someone posted a link recently to a cool website on how to best use a vac gauge and I cant find it.

Thanks all!