Originally Posted by
Ridgey
I suspect it is the secondaries opening up when you get to about 3.5k rpm.
At this point the car starts running though all 12 inlets ports and not just 6.
The Probe ran the Mazda derived V6 engine not the Duratec V6.
Never knew that about the Probe using the Mazda MX6 engine. Is the Mazda/Probe engine better than the Duratec V6?