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G.M. · 07-25-2010, 07:03 PM

Sounds like a vacume leak. The shaft on the throatle plates or the bushing the shaft go's through wears and sucks air and the adjustment screws have no effect. G.M.

07-25-2010, 07:03 PM	#5
G.M. Senior Member Join Date: May 2010 Location: Florida and Penna. Posts: 4,471	Re: Tuning A Flathead Sounds like a vacume leak. The shaft on the throatle plates or the bushing the shaft go's through wears and sucks air and the adjustment screws have no effect. G.M. __________________ www.fordcollector.com