holley metering block questions…

I have a Proform main body, the smoothed venture type. It has changeable air bleeds, so I’m going to put it to use. I picked it up from a buddy for free, it has no casting numbers to show what cfm it will flow. I am currently running a Holley 800 with a Proform billet base plate. My current Holley does not have the four corner idle adjustments and has a choke tower on it, so I want to get rid of it. Is the conversion to the four corner setup just as easy as buying a Holley metering block with the adjustments on it? Is there any kind of matching of the metering blocks? I assume this main body is set up for the four corner setup, but I don’t know how to tell. Below are the links of the parts I have, but I’m not sure if this is EXACTLY the same main body, since it has no identifiable casting numbers. Thanks for any help!!

http://www.summitracing.com/parts/PRO-67100C/
http://www.summitracing.com/parts/PRO-67155/
http://www.summitracing.com/parts/HLY-134-62/
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Author: admin