Double plumper carb or stay with Vac sec carb?

I think I'm going to get a 750 4150HP. And try it out after I get m other issues I'm having figured out. But should I get a Holley or go with a quick fuel? I've heard quick fuel is Chinese junk and I've heard they are the best? Anyone used both brands? Likes or dislikes?

Have a Q.F 750 double pumper on my 360 Magnum. Huge difference between it and the older Holley 4779 double pumper. Crisper response,off the bat. My .02, decent equipment.