This is probably the hardest area of the catalog in which to find the info. As it
now says at the top of the 2150 page, if you don't have the alpha character that goes behind the 95.2, 95.3, or 95.4, such as A, then you need to find that.
To do that you have to click on the
CALIBRATION INFO & PART #'S link. And there, assuming you don't have the tag on the carb, follow the instructions on the Application To Parts List tab to find your application and, more importantly, the Parts List Number. Then click the Parts List tab and find the specific parts list. In that you'll see the carburetor and the 95.3 and the all-important alpha character.
Then, armed with the alpha character you go to the 2150 page and find the column for that alpha character. What you called the "XX". All of the parts numbers for that carb are in that column.
As for the symbols, I've documented that somewhere, but since there are hundreds, if not thousands, of bits and pieces of the catalog scattered all over the website, I dunno where. Anyway, here's what it says:
The following symbols appearing on revised pages are to be interpreted as follows:
* Indicates Motorcraft Sales Part Number.
# Indicates some form of identification such as part number, stamping, paint stripes and tags.
Star Symbol indicates part is not supplied for service for the following reasons:
a. Part is superseded and replaced as indicated in the description column of text.
b. Part can be improvised as indicated in the description column of text.
c. Due to its function there would be little or no demand
Gary, AKA "Gary fellow":
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Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI