Reply to "Carb help"

George PAdmin.

There are only a few ways for fuel to get from the carburetor into the intake manifold. Through one of the metering curcuits, or the power valve.

If changing primary jets didn't make an improvement, if the fuel bowl level is set properly, if the idle metering screw is in the ball park, if a known good power valve is installed, then what does that leave us?

Could it be that your intake manifold vacuum is so low at cruise conditions that the power valve is opening? Have you checked intake vacuum while cruising around in the car? (easy to do with a long piece of vacuum hose & a gage)

cowboy from hell

10/15/0710:31 AM

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