Thread: Gas milage help
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Old 02-21-2018, 08:09 AM   #5
engineer_gregh
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Join Date: Feb 2012
Location: Smyrna TN
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Re: Gas milage help

Something is off if your gas mileage is that bad. Even my hopped up big block 402 does better than that. It would help if you let everyone know some of the following; HEI or points, ignition timing (initial and full), plug gap and even what plugs your running, rear end ratio, manifold vacuum, and even pictures of your carb and engine. There are some very good mechanics on this site that can help. A 69 2 wheel drive pickup with a new crate engine should do at least 10 MPG, if not better. Just curious, why did you put a 2 barrel carb on a new crate motor?
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Greg Smyrna TN
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