Quote Originally Posted by Spartanzz View Post
if it were a vac leak where is the most typical place to look for the leak?
don't know what year the car is but there's a vacuum t under the SC snout that tends to split over time. it's part of a vacuum harness that goes from the bbv, fpr, under the snout over to the map. they're like $15 at the GM store.

the #3 misfire might be related but it also could be a plug or wire, something like that.