Another 416 Stroker Build-Pic Heavy

PRH said
I guess today is that day.
In 1990 I had Norm at CFS build me a ported 4781 850DP and replace the boosters with annulars.
It’s been a fantastic working carb for 30 years.
I’m sure there are better carbs available nowadays, but that’s always been the 4150 to beat for me.

Ok, so what did the annular booster correct? I get that it develops a greater pressure drop, but unless the venturi is really big does that booster gain help?

Evidently it did on that carb. I really need to burn up some bench time and flow some carb stuff.