Ask pijiang and 863211 for help about I-140 (EB3 concurrent)

We filed I-140/I-485 (EB3)concurrently in Aug.2007, the I-140 is still pending. Since a concurrently filed I-140 and I-485 petition will be adjudicated simultaneously,I wonder does the concurrent filling will cause delay on I-140 processing?ie. does concurrently filed I-140 will be processed later than if the I-140 filed separately from I-485? Thank you for your help in advance.