Eric, The base plate does have the 172 throttle blades and it is the early base plate without the extra metal on the side that you would see on a service replacement part but it does not have the 3/8" PCV nipple. From what I can read the metering block numbers are 6271 and 1003. Thank you for your help, considering the two opinions offered yours is the only one that matters.
Last edited by 92646; 11-06-2017 at 12:53 PM.
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