Re: Terrible milage
Got my new power valve, will install tomorrow and drive her around. The fuel pump is relatively new, changed it last year, but will check sump just in case. Just to address leaks, this truck doesn't leave any marks on the ground, it is pretty tight. Fuel evaporation is a thought, but I have been keeping track of milage since I have had vehicle, it has always been lousy with the Holley.
checked my milage figures, best with stocker was 14mpg, Holley ran about 11 mpg when installed and has gone steadily downhill since.
Last edited by jagarra; June 15th, 2022 at 09:05 PM.
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