Sizing carburetor

The thing with carburetors is, an 800 Holley is not the same as an 800 Eddelbrock AVS an 800 Thermoquad, yet, no matter how much you try and preach it, people will not listen. AT ALL. So, all I can say is, all my stuff through the years has run well and hauled ***. There's just no way in HECK I'd ever run an Edelbrock 1406 on anything that was what I wanted to be a "performance" engine. They are NOT performance carburetors. All they are is a factory replacement base model four barrel. They have a very lean system. The 1405 is the performance version. Now if all you're interested in is mileage and a factory type running engine, grab the 1406. They can get good mileage. But if you have a better than stock four barrel intake, cam and headers, you will always be chasing a lean condition IF you try to tune it for performance. But again, you simply cannot communicate that to some people.