Just curious...any one know?

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"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports

 

I don't know the inches but I think they were made in 750 and 825cfm. I belive they used a different vauume drop standard also to rate them. I couldn't get an 825 to idle on my modified 400. It sounded like a vacuum cleaner in there.

Bear Tracks

 

Yeah thats why Im curious. I have a Holley spreadbore, that fits right on a Qjet gasket, and it's only rated at 650cfm.

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"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports

 

Well I also have a Holley 800 (list 6211) that also bolts right up with the same gasket. Both the pri and sec bores are bigger than the 6210.

I'll go home and measure some stuff tonight and get back to you.

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"So many Mustangs, so little time..."
ICON Motorsports