on a 2007 honda accord ex (4 cylinder manual trans.) at what rpm's should...
 

...you shift gears ??

oh those honda engines are smooth. They just beg to be throttled. They feel like they have an endless ability to rev. Take a look at the power band. for fastest acceleration times keep it near its peak power. but for normal driving, about 3 or 4000 rpm. just drive it so it feels and sounds good.