It depends what you're trying to achieve. Are you talking light throttle, medium throttle or full throttle? Are you talking about all out racing, or ??? Generally, the stock shift schedules are set too low, IMO. With your Hemi you'd normally want to get the RPM up a little more (light throttle) before you shift it. Same with medium throttle. Your full throttle upshifts (with the stock cam) should be somewhere around 5600-5800 RPM. Above that your power starts falling off fast. I use the Superchips Advanced Transmission Tuning Application and have most of my light throttle upshifts to occur at about 2300 RPM, and as the throttle is advanced the RPM goes higher before upshifts. My 4-5 upshift occurs at about 2400-2500 RPM, or around 70 mph. All of these settings allow for much more MDS "on" time and, for me, better fuel economy. With my mods., on the highway, I mostly drive in 4th gear (usually 63-68 mph).....2100-2400 RPM. Wide open throttle upshifts on mine are set to 6200 RPM with the rev. limiter set at 6500 RPM. My downshifts are also quite sensitive to throttle opening. I have it set so it takes very little more throttle application to make it downshift to the next lower gear. My goal here is to keep the engine from lugging and getting too far below the torque range.
06 GCO, Dk Khaki, QDII, Flshing Hi 3rd Bk Lt, MDS "ON" Lt, Airtab Vortex Gens, Debadged, Fumoto Drain Valve, BT Catch Can, Chopped EGR Tube, SRT8 CAI, K&N Filter, Sonnax Trans Line Press Booster, SC Tuner W/Adv Trans Tune App, DS Tuner, Cust tubular hdrs w/3 in Magnaflow/Xlerator AP Exh Sys, Bilsteins, SRT Springs/Sways, Cust Eng Cvr, SRT8 frt/rear bumpers, FRI Sidewinder Cam/6.1 valvetrain, SLP 25% UD Pulley, BBK true 90mm T-Body, SOS Ign Coils w/.060 spark plug gaps, SRT Reps with 265/45&295/40X20's.