[QUOTE=granlund;6083126]If the spark plugs are old, replace them.
Ignition coils (on top of the spark plugs) age and cause the same kind of poor performance as bad spark plugs.
The intake rubber boot can crack and cause poor performance. For me it did and when accelerating, the engine twisted slightly to widen the crack.
I'd also start there
You canít spend all your time worrying about where your next Twinkie is going to come from, so follow rule #32 and Enjoy The Little Things.