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Re: what are you guys getting for mpg?
Even with identical overall tire diameters, heavier rims (ie, higher mass) will absolutely hurt fuel economy, along with acceleration and braking. Look up Newton's law of motion if you're having trouble wrapping your head around it.
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'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread
'98 Camaro z28: 370ci twin turbo 370ci build
'01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD
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