Old Offenhauser Intake Carb question

Hey guys, I got a hold of an old Offenhauser intake from a friends and I'm wondering what kind of carbs mount to this things and where would I get them.  I can't seem to find any info on this intake or the carbs that mount to it.  I kinda like the fact the each port is almost a straight shot to the heads. Here's a photo.

You need the rest of it.

aw ok, I figured there's a upper portion like a tunnel ram style or something. thanks for the info man.

Yeah, that is an Offenhauser tunnel ram base, as was already said "you need the rest of it.

Wayne (SAWDOFF) Pearce