A vacuum gauge will give you a LOD equivalent. ~13 psi MAP is about the same as 85 LOD. You'll have to translate if your gauge uses other units.
That's a good target if you're not using lean burn. Others here can advise you on best practices with LB.
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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