carb theory question

[priderocks]

Ok, I know little about carbs. So could someone please explain to me why a lower flow carb (say 625 cfm) provides for better low-end response than a larger ( say 750) carb. Get as technical as you wish- I really would like to get a grip on this.

[wagesofsin]

looks like i may be needing the ignition and door lock set as well as the trunk. anyone got anything good?
i know i can get em new, id just like to keep the money here, if ya know what i mean.

thanks,
 john