hey jus wanna know how would i kno if the 5th n 6th ports are working and if take them out will it have an increase in horsepower? also where is the pulsation damper located at? thanks

 

You should have searched first, but...

Put some grease on the actuator rods, if it's displaced after a hard run, the ports are working...

PD is on the primary fuel rail, right on top of the engine, at the front. Mushroom-looking thingy, might be able to see it with a flashlight behind & below the alternator...