so i've decided on a annular booster carb. I understand that with these boosters, you lose CFM, so the advertised number, is higher than it actually flows. I think i've read that the quick fuel carbs have booster inserts, that help keep the CFM loss to a minimum. i was thinking of the 1,000 cfm hp or the 1050 quick fuel, 4150 based.
what i'm wondering is, what would be better for my car?
mild 526 stroker, nothing crazy, ( i'm still waiting for all the specs on it)
it made 550is hp and about 630lbft. it's in a 4400lb wagon, 2600 stall and 3.73's.
it'a a street car, thats gets driven, to work, the store, the 3 hour ride to Carlisle, etc. i just don't want to under carb it.
it has a performer rpm, not the best, but i have no hood clearance. would the hp be alright, or should i step up the the quick fuel?

My QF SS-750-AN is called a 750 but QF told me it's actual flow is 735cfm with the annular boosters. You may not be loosing much more if any with the larger QF 1050.

I have a QF 1050AN and it seems like a killer carb but I'm not sure I'd put it on a 4400 lb wagon, even with a 526 under the hood. If it was me I'd call QF and talk to the tech line. I think they might steer you to a 850 or 950 with the annular boosters.

We have had great luck with both booster type of Quickfuel 4150 style 1050 carbs. Either booster style had great throttle response on the street and it seemed like the downleg liked less jet on the dyno. You will most likely need to put larger IAB's in either one to lean out the idle a little.

I wouldn't worry at all about losing flow with a carb that size. With dyno time I've done an annular makes up for most if not all of the power lost from less air due to better atomization and vaporization, that leads to better distribution. The 4150 style annular carbs use a booster that is .600 thru the center versus a .500 center a Dominator uses, which loses less flow. Have you considered something custom? When building I prefer the BLP baseplates, the t-slots are smaller which make the idle and part throttle smoother. Quick fuel bodies have a better entrance shape, they flow better on the flow bench than the Holley. BLP billet bodies are another good choice. And there is custom work that can be done with boosters to help flow and signal a little more, and improve atomization.

When we dyno'd my 511" low deck the annular made ~25hp more than the downleg on two identical carbs.

Andy, do you want me to send up the QF 1050 downleg main body for testing? It's not currently in use. I'd like to see if our results were repeatable.