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Needles and seats
RaceDeck,
Not sure if your problem was the same as mine but I was confounded with flooding problems. Part of it is very much related to altitude and in SLC, that may be a concern. After trying several different combinations, the one that seems to have solved my flooding problem was a set of Holley off-road needles and seats.
I would definately get a pressure regulator to knock it down to 6 psi or so. As an experiment, set your float level down 1/4 below the sight and try it out. It may stumble a bit during transition but it will help identify floats as your problem. If it stops the flooding, try the off-road setup. There is another guy here in Denver that is having the same problem. I ran an old carb for the first year and it never hiccuped. The new carb had problems right out of the box - but now it runs great, so I am not sure if Holley has changed something in the float or bowl setup.
Gary
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