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Re: C-20 highway rpm's
Before I swapped in an overdrive auto trans, I was running around 3000 at 60 MPH 4.10 gears with TH350 and 265/75R16 tires. Now right at 2000.
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Terry
1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC
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