R&P gears change nothing in throttle response. Throttle response is the time taken from the moment the throttle body is opened to the moment the engine responds, makes torque.
OK... I think I see what you mean...
My engine rebuild...
4.10 R&P, in 1st gear, just idling at 900 RPM, my torque number 69.4 foot lbs, my speed is 5.1 MPH
I punch the throttle to 1900 RPM, my torque is 112, my speed is 11 MPH
4.88 R&P, in 1st gear, just idling at 900 RPM, my torque number 69.4 foot lbs, my speed is 4.3 MPH
I punch the throttle to 1900 RPM, my torque is 112, my speed is 9 MPH
So my throttle response is the same, but my actual speed is higher with the 4.10 gears at 1900 RPMs??
Gnarls.