Something does not sound right. At 80 MPH you should not be anywhere near 3500 RPM if in overdrive. How steep of a grade were you climbing? Prior to super charging my H2 a lot of vehicle were passing me up the hills in Lake Tahoe area. If you use the tow button the H2 won't shift so much.
With the supercharger installed, nobody can pass me now.
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03 H2 Sunset Orange Magna Charger w headers & cold air intake, 4\" Rancho lift, XTC Light Bars Front & Rear, 4.56 gears with Eaton Front Locker
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