DOH! 4K limiter, OMG.
I was testing the spark plugs I just put in throughout the RPM range and came up against the 4K wall...surprised me.
I've always told everyone I loved the car when I bought it and I like it even more each year. It grows on ya.
Originally posted by LocoSCZ:
Surprisingly, most Zetecs run like you are describing. 
It has ALWAYS run this way, choppy on low end. I got it 100K miles ago and it was somewhat rough, a lot more so now.
Any advice on smoothing out the low end? Thanks. 
