Rough idle and no vacume?

[94talonawd]

Umm... sounds to me like your timing is off a tooth like what Blizzard said.

I had the same problem. Did you check your base timing? Check that, and see if the line stays right on one spot. If it is floating around one spot, then your timing is off a tooth. One tooth makes a big difference.

Blocking your EGR doesnt make your car idle surge nor does a faulty boost controller. Check the timing and do a boost leak test would be the first thing I would do. Do that, and get back to us ok? And then we'll see what do do from there.