Technical reduce carb cfm???

i found these on the "BAY" while looking for small carbs for a 2 x 4 set up.
http://www.ebay.com/itm/CARTER-EDEL...Parts_Accessories&hash=item419048a356&vxp=mtr
is this something that would really work? seems kinda sketchy to me.

 

Don't know why they wouldn't

 

They should work, although I think the "USE JB WELD OR EPOXY TO INSTALL " part is kinda sketchy.

 

The only difference, aside from jetting and rods between the 500 and 600 is the size of the booster venturi- I think someone has a great idea. Probably use them if I go dual quads again.

 

That's good to know.

the guy also sells a kit for dual quads to go from 600 to 400. includes gaskets, jets etc.

 

On several other performance carbs such as Weber DCOE you replace the venturi to adapt the carb for diffrent air flow requirements.
This restrictor certainly doesn't look very high tech, but I'm guessing it would work pretty well for such a simple modification as long as carb adjustment gets the appropriate attention afterwards.

 

i'm more of the grease monkey type mechanic, thats why i asked the pro's, thanks guys.