ok, just got them off the flow machine.....

stock driver side manifold flowed 255-260cfm @ 28in/hg (industry standard)
our driver side manifold BEFORE the teflon coating 455-460cfm

are you friggin kidding me?????????? NO

we swapped the stock and our manfolds back and forth on the flow machine 6-7 times, same results, same settings on the machine