Newbie carb 1945 rebuild questions

I'm not sure if anyone else noticed, but it looks to me like the brass weight is still in the carb body in the picture posted by Mako21. I seem to have lost the check ball brass weight from my Holley 1945 this last weekend as well.

I rebuilt my carb this weekend, and didn't realize I had lost the brass weight until after I had started the Dart and set idle. It actually ran better than it has since I bought the car. Then I pulled the distributor to replace the vacuum advance solenoid. Got that back together an installed and it started right up, set timing and it ran great. Drove it a few miles with no issues. Then last night I noticed a little ball bearing on the garage floor. I knew the carb kit had one in it, but there are usually parts in carb kits that aren't used on a particular vintage, so I didn't worry about it.

Well, I never did find the brass weight. I am also having trouble finding a replacement online. I did find some dimensions online, so I will likely try making a replacement. Googling around, I saw in another forum where they were saying that if you don't install the ball and weight, that the accelerator pump won't work. Well, it obviously works without it as I was driving around without it. Anyone have a little more knowledge than I on the actual operation of the check ball that can make sense of what occurs without these parts? Any ideas on where to purchase replacements? Can I replace the ball/weight combo with the conical shaped weight style? They seem to be more readily available.