so your sayin to over carb a blower motor?
We had a 540 BBC NA and it only had a 1050 dom on it and made 850+. It was going high 8's

I don't understand carb tuning too well...........

 

I'm not sure I'd call it "over carbed", rather providing a minimal inlet restriction with the correct afr. Nothing I've done or read about ever implied a over rich condition. I've also never heard of any roots blower combination running a single carb. Many years ago I looked into trying to run a single carb, people thought I was crazy.