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Rev · 02-27-2005, 04:15 PM

If the power valve was leaking, I don't think the engine would idle well. Same with the needle and seats leaking (the float level wouldn't work). What sort of vacuum are you getting at idle? If the PV is actuated most of the time during normal driving (due to low vacuum), that could account for the bad mileage. Something is wrong somewhere to get 8.5 mpg without the lead foot.

Rev

02-27-2005, 04:15 PM	#4
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Re: 8.5 mpg help If the power valve was leaking, I don't think the engine would idle well. Same with the needle and seats leaking (the float level wouldn't work). What sort of vacuum are you getting at idle? If the PV is actuated most of the time during normal driving (due to low vacuum), that could account for the bad mileage. Something is wrong somewhere to get 8.5 mpg without the lead foot. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe