Horrible MPG/Fuel odor troubleshoot

mguner said

When modifying carbs for certain race applications you eliminate the power valve. They recommend upping the jet size 10 steps. They also recommend making little "V" shaped wire inserts to restrict the idle circuits which are affected if they do not have the factory restrictor orifice.

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I don't know who "they" are, but IMO, they are wrong. I've read all about that too and known people who've done it. It just never works as well as tuning with a power valve correctly.

Also, what I was getting at is, if it has a power valve and it is ruptured, that could be the whole problem.