02-04-2005, 03:28 PM | #1 |
AUSTIN TX
Join Date: Sep 2004
Location: Austin, Texas
Posts: 135
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Very bad gas mileage
I have a 1978 GMC pickup 1500 series, last Jan. of o4 I had a new motor (305) put in. An Eledbrock performer series manifold sits on top with a Eledbrock 600 with electric choke. For the past 3 months my gas mileage has been getting worse I have changed the plugs put new plug wire on and thats should have fixed it but it didnt, can you give me any ideas what I can try next, I am chasnging the jets this weekend so any help would be of great need.
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