Holley carb help

Guys im trying to figure out what carb this. 4224 is on each metering block. All carbs i see only has one fuel inlet and one metering block . As you can see in my picture it has 2 metering blocks.

Thank you for any help

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The 4224 is the 660 cfm mechanical secondary carb mostly used on tunnel ram intakes.

 

660 center squirter.

 

Haha, had to move the screen over so far with the huge pic, I didn't even see 55driver's post.

 

Why is it when I look that up I only see one metering block on the front of the carb?
Thank you for the help

 

Sorry for the pic size.. I couldnt get it to load and had to have my daughter help...

 

They were most likely converted with a kit. Came with longer bowl screws and transfer tube.

 

I wonder if I would need a special rebuild kit because of the extra metering block.
Sorry for the stupid questions but just want to be sure.
As always thank you for the help.

 

You can buy the bowl and block gaskets separate. You may have to also buy a secondary power valve. If you need a whole kit, buy it and then buy the addition pieces individually.
Just noticed they are sitting on a s/c, may not have power valves.

 

I took the carbs apart and cleaned the crap from tham and didnt see any power valves ?

 

Should have a screw in plug in the lower center of each metering block.

 

No power valves in either end