I have never seen the recall on them, can you show me the recall? I do know when they came into the dealers back then with carb problems they would just swap them for 72 73 74 or whatever carbs. The 71 is the fastest 800 cfm carb out there as far as factory t quads due to the air metering, but vey hard to get jets and rods for. There may have been manufacturing problems with this first year carb but I think calling them junk is a little extreme.