How much horse power does Harley Davidson get with 99 cubic inch?

The answer can only be give when you list the parts included in the motor itself or tell what after market motor you have . The cubic inches doesn't really give away the horsepower . Normally it should be around at best 1 hp per cubic inch on a good tune . That being said I also have a good friend who is getting 187 hp out of a 98 cubic in motor on pump gas , so you see why the internal parts of the motor should be listed before a good reasonable answer can be given to your question !