Hello all. I'm new here and I have a question. I have a 30 Model A Sedan with a mild 350 Chevy, TH350, and a Ford rear end with a 3.00 gear ratio. I want to swap my TH350 for a 700R so I can get a little better gas mileage but I'm not sure if my current gearing is suitable for that transmission. Is this too high of a gear to run with the 700R? I would rather not change my gears but I don't want it kicking in and out of overdrive while cruising down the highway at 55 to 65. There is a down shift kit from B&M that keeps it from doing that under 2/3 throttle. Have any of you used it?