My front carb had a blockage here.
http://www.peachparts.com/shopforum/showpost.php?p=2069363&postcount=6

These are great little carburetors when they are right. Hang in there.

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1986 560 SEL
1960 Ranchero
1970 Cougar XR7
2002 Crown Vic Sport
1992 F150