Re: Motorcraft 2100 cfm???
I posted this earlier.
Keep in mind that the cfm ratings of a 2bbl should not be compared to a 4bbl.
2bbl carbs are tested at 40.8 in/h20 vs. 20.4 in/h20 for 4bbls
By looking at the throttle bore size and the venturi size i would guess at about 350 CFM,this is only a guess! I have one laying in the shop and have been wanting to get it on the flowbench but just havent found the time.
the holley that most use is a (list #4412) this would be a 500 CFM carb,in most circumtances this would be way to big for a 258,they do have a 350 CFM avaliable but i am not familiar with the number.