Mine is a 350 with mild build. I don't know what all was done to it since it was like this when I got it. It definatly has a cam and headers but that's all I know for sure. I get about 6-8 mpg but I think it is the 35" tires that kill most of my MPG.
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bouncytruck 1972 K5
The Hauler 1994 K1500 Suburban
The Daily2010 Kia Soul
Wife's Ride2014 Fiat 500L
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