you know my SVT has the same condition- I know I need a rear motor mount- but below about what 3000 rpm it sometimes but not always seems to be down a cylinder or two correct? I was begining to think that I should look at my sparkwires and do a quick visual on the vacumn lines but I havnt seen a problem so I didnt know- I freind of mine swears it is the fuel pump- but that doesnt seem right because after the secondaries open up the flutter goes away -
is this what your car is like?
