1972 holley carb

[1958300]

Anybody have any info on the Holley R6253 used on the 1972 440 HP engines? The listing on the Holley web page does not include this model.

[Charger72SE]

I've got that carb on my 72 SE 440 HP and I ask Holley for the CFM.  They replied that it was a build-to-spec carb for Chrysler and they don't have the details.

In a separate post Neals said he thought it was a 600 cfm.  I did see in an article a while ago that it was rated 600-750 cfm

[Chryco Psycho]

my book is too new also , my bet is 600