That should be fine on the Rev limter, just need a few hundred above the shift points. For tire size you will need to measure your tires. The stock tires are actually about 32" under the truck's weight. My Coopers measured 32.25" when new and are now down to 32". I have checked my speed with my GPS and I am dead on with mine set at 32".
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2014 Ram 1500 4x4 Outdoorsman
Retro Shop Custom FXR Projectors | Diablo inTune | Moe's 87mm TB | BT Oil Catch Can
Toyo A/T II Tires | Bilstein 5100 Front & Rear Shocks | AirLift 100 Air Bags
Bestop PowerBoards | RollBak Bed Cover | BedRug |