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any suggestion on saving fuel is welcome, i will undate my fuel econicm after a tank of gas, and any problems it may has with a engine running on 205 degree local drive. i have 10 gallons of 87 and 17 gallons of 91 octane in my tank, so far no knock.
by the way i didn't change the valves, i just use a drill with some griding compond and get all valves seal, also with the plenum gasket ,i just put cooper gasket compond insteasd of change the pan, because i am a cheap guy, now scratch my head for saving fuel.
whatever your guess is , i hope is right. if i dont save gas on this truck i am going to sell it, so far with 50 miles on it ,no check engine light come on.