Question about gearing for Top Speed

By horsepower you mean torque and gearing. Acceleration does not have to do with reaching top end power for the sake being at top end power.

By horsepower he must mean horsepower, torque is “basically”output of one revolution and hp is all the revolution added up over time “rpm” can’t have an either or situation an engine make power only which we use Hp to represent and hp is the sum of torque and rpm. You won’t find a formula telling how much torque you need to do x amount of speed but you will with hp.