Gear Ratio Recommendation

yeah, charger 1.0 was a Toxic Orange 2011 R/T that has the A580 behind a 5.7 hemi, IIRC the stock gear ratio was 2.65:1...with the OEM 28" tall tires, it hit 2000 RPM at like 74 MPH. keep the cruise at 69-70, it would get 30-31mpg on the highway actual calculated. I got t-boned and that car was totaled in 2019. I replaced it with another toxic orange 2011 R/T, charger 2.0 is an R/T road and track, which came with a 3.06 rear. it's turning 2k by around 65 mph, and is around 2200 at 70. that difference is enough that the best calculated mileage I've ever gotten out of it was about 26 mpg. honestly, acceleration between the two ratios felt about the same, granted there was about a 3 month window between driving the 2, never back to back or did a trial side by side