Carter or Rochester?

[Coriolanus]

I've heard that quadrajets are superior for gas milage compared to the Holley 600 that I have. While doing my research, I've seen that there are Carter Quadrajets and Rochester Quadrajets. With a correct rebuild of the same type of carburetor, shouldn't the performance be the same If not, what is the difference besides the name?

 

[Bonnewagon]

They are the same. Demand was so great, Rochester contracted out to Carter to supply carbs.

 

[Likethat]

265k tight tolerance.