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  1. best rear end gearing?

    Classic Cougar Tech
    hi there, i have the stock rear end in my 68 xr7, 351c engine. im looking to get a new one, id like more power but id also like to do longer drives with it like 100+ KMs so which gearing will give me the most power while keeping the rpms low enough on the highway for comfortable driving? thanks
  2. highway RPM and mileage estimate

    High Performance
    Anybody running 400 HP, C4 with shift kit with a 9 inch equalock rear and 3.55 gears? I'm getting ready to gut my cat and I think I might go with this combo. This is somewhat my daily driver so I'm trying to find a good combination of daily driving and Sunday night racing... I heard AOD will...
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