Bogging down from a stop

As I pull away from a stop, on an incline (both up or down) the engine seems to bog down regardless of throttle position, just for a second or two. It almost feels like an injector is not working, but I replaced them about two years ago as well as the fuel filter. I was wondering where I should start looking...fuel pump, filter, injectors...anywhere else?
Thanks

Try running a few bottes of a decent Fuel System cleaner. How many miles on car? Plugs and wires maybe? I had a similar problem in a Geo i used to drive abd it was an ignition module. 25$ part for that car. went out at about 150,000 miles.