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Old 02-04-2007, 08:10 PM   #5
84 400
Sb 400 club
 
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Join Date: Nov 2005
Location: NH / MA
Posts: 2,746
Re: 18MPG in my LIFTED burb this weekend! And a problem...

wow if your getting 18 mpg highway that is crazy! I mean that is really good for a truck of your size and lift and tire drag. Sounds really nice to me. Wish i could be of more help on the ping issue. sounds like you on the right track by switching to higher octain gas. Could also be somthing on the tbi.
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1984 chevy c10, built 400sb,.(SOLD)
77 K10 Project / daily driver "The Grinch" http://67-72chevytrucks.com/vboard/s...d.php?t=318363
1956 Willys Wagon (327 chevy) Project (Now Buick 225)
1980 Corvette L-48 4 speed
1992 Mustang GT built 5.0 5 speed

1985 C10 LWB Sold
1982 K10 SWB plow truck Parted out
1986 D30 M1028 fire brush truck Parted out
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