Quote Originally Posted by Blazer454 View Post
So when you say "low power" what does it feel like? Missfire, engine tries to die, or engine seems to be struggling to move along? You say it is more noticable in higher gears, is this an auto tranny?
Imagine what it might feel like if the power wire to the ignition coil were dirty and not making a good connection. Imagine the voltage dropping off under load. I cant exactly say that it feels like a misfire. It feels like a weak spark condition in that it fires, but not with all of the "oomph" that it should. I have advanced the base timing to about 4*, which has helped a bit but has cut some of my take off power.

It is a 5 speed manual gearbox.