A 1" B body bar is 175# wheel rate. A 1" A body bar is 195# wheel rate. Wheel rates are the springs applied force at the center of the tire's contact patch. This is how you can compare different spring rates and suspension designs to come to an apples to apples comparison of rates.

In my experience, a larger bar gives up an amount of 60' time, however, it will be much more consistent and repeatable than a lighter bar and 90/10 shocks.

My drag car with SS rear, light front end rates, no sway bars, and adjustable drag shocks would run 12.2-12.6 and was variable with track prep and atmospheric conditions. The same driveline in my handling car with heavy t-bars, large front and rear sway bars and much wider tires all around would run 13.2 run after run after run. If you're a bracket racer, you know which one you need to have to win.