On a side note here...…...Holley Carburetor was an OEM supplier to Ford as far back as the Model T days. The Holley 4160 carb ( that we all know today ) was designed originally for the 1957 Ford T-Bird 312 and was original equipment on it. Holley's Dominator carb was designed originally for the big Ford Boss engines running Nascar. The 4150 Holley carbs were OEM on various Boss 302 and 428 Fords. Holleys are appropriate on Fords, and are quite simple. That said, the Summit carb was DESIGNED and marketed by Holley around 1989. Summit bought the rights to sell them cast as their own, but have been around for years, and are very decent carbs, and they have the one piece body and down-leg boosters as the Ford 4100 carbs were famously designed with ( the 4100 is a good carb in it's own right, I think Ford stopped putting them on their 4bbl engines around '68) . Holley released the model 4010 carb ( the Summit carb ) around 1989. Even though the Edelbrock carb is a Weber re-do of the original Carter AFB, for some reason, they don't run as well as the old Carter AFBs, especially the "Competition Series" AFBs, which were great.
Personally, I like the Holley 4160 and Summit carbs on the street with an automatic. I'd go to the 4150 if I had a hotter 4 speed. But , in any case, I find that I'll trust rebuilding as long as the carb was purchased new by me in the first place ...…….otherwise, you may never know of internal problems. The very best rule of thumb, if you're not well versed in carburetors, is to just buy a new one.