for an example I built my self a 10mill stock cylinder motor years and years and years ago lol.
I did all the port work myself it laid down 85hp and on the dyno instead of rpms they used mph it pulled like 99mph with 20inch tires and 16-37 gearing..
Now my cub in 500ft will run 95-96mph with 18-39 but it will do well over I would say 110 or so with that gearing
sorry wackoo dident want to quote you just wanted to reply but hit the wrong button