RPMs, bouncing at idle Options

[Redline08]

I just hooked up a 1400w amp to 2 subs. At my schools car show i was watching my rpms as i cranked the volume for my chem teacher lol, but anyway the rpm needle bounces at the idle from around 300 to 500 rpms, not a huge jump but enough for me to notice...

Bad or not bad?

should i change something?

thanks

[Redline08]

havnt touched my plugs in a while, never heard of gapping either, im not an engine guy, interior and wiring are my specialties, i just do intakes, headers, simple bolt ons, and regular maintenence on the engine, ill try gapping or watever later, thanks

[3WayStunna]

havnt touched my plugs in a while, never heard of gapping either, im not an engine guy, interior and wiring are my specialties, i just do intakes, headers, simple bolt ons, and regular maintenence on the engine, ill try gapping or watever later, thanks

"Gapping a spark plug. Gapping a spark plug is the process of ensuring the gap between the two electrodes is correct for the type of engine the plug is going to be used in. Too large a gap and the spark will be weak. Too small and the spark might jump across the gap too early. Generally speaking, the factory-set spark plug gap is just fine, but if you're running an older engine, or a highly tuned engine, then you need to pay attention to the gap. Feeler gauges are used to measure the gap, and a gapping tool is used to bend the outer electrode so that the gap is correct."

Gapping the spark plug as explained by carbibles.com ^_^
its actually pretty easy, so with youll definatly have no problems with it