Valkyrie

It seems like my car has started to drop off sometimes above 7K (usually you feel a slight decrease in acceleration, but lately sometimes feels like I'm getting slammed forward with a power loss), and that it sometimes shakes at 7500 and above (instead of revving smoothly to 8K)...

Any ideas as to what could cause this?

Perhaps I need to check my timing (for the 50000th time), or do I need to clean my plugs again?

My mileage seems to have dropped lately, too... to about 20 MPG on the highway, instead of 24.

SpeedOfLife

iTrader: (16)

degraded fuel delivery? you're trying to dump quite a bit of fuel at such high RPM, any hindrances there will be exaggerated the more fuel you try to deliver.

Valkyrie

Hmm... well my timing was a bit retarded... although I kind of doubt it would have caused those slight hesitations.

Car pulls plenty hard till 7K though (hell, the 8K redline was basically a marketing gimmick more than a performance boost).

NCross

iTrader: (18)

a TII may be different but i never take mine over 7k. i could if i wanted to but why?

Valkyrie

Problem fixed by adjusting the TPS... I might have adjusted it WAAAY off last time.