430 B4B recommended Carb?

What are the cars to look out for for a 71-74 850' carb?

What are the online names for Ken and Mark so I can get in contact with them?

 

Why a bigger carb then factory?

 

Can a 750 carb be "ranged" into 800cfm

 

Got a chance at a 750cfm buick carb and don't know if I should wait or buy it. Mostly because I don't know the logic behind getting a 850 and also I don't know what cars I can find them in (is it going to be real hard to locate one)

 

Buick 455 Quadrajets from 71-74 we’re larger cfm, small primary bore.

 

Thanks.
Do you know where I can find info on the casting numbers please?

 

http://www.v8buick.com/index.php?threads/rochester-carb-id-the-definitive-guide.120674/

 

Thanks

Thanks alot

 

Update..Ended up with a 750cfm from 1967 off a riviera .
Looks good and clean ..7041306..

All I need now is the spread bore adapter I saw one from Edelbrock for like $48 and another one from Speedway Motors for 15 bucks..
I think I'll just keep an eye out for the 800 and 850 CFM, meanwhile this 750 should work just to get her running and plus I got it for 65 bucks. Thanks for everyone's help

 

Ronnie, I may have a spreadbore to squarebore adapter. Is that what you are looking for?

 

Hey Mike, this is what I'm looking for

 

That's it. What's your number? I would rather get something in trade.

 

Pm

 

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