Come on guys... don't make me read the manual...

[Mach1]

Sooo, before I go diggin into the service manual...

Is there a usual issue with 3400's hesitating on hard acceleration (around 4k-5k rpm). Mine's got 120,000 miles. It's been well taken care of. Ummm, I've changed the oil every 3-4 grand, changed the spark plugs and wires at 100k, had every accessory replaced at least once (alternator, power-steering, a/c, etc), and I've been running premium in an attempt to keep the car from lagging too bad. Basically, I just want to know if it's some random part that I'm not thinking of...

yeah, I know this makes me look lazy and stupid...

I'm ok with the former.