Does any1 know how to tell the different from the 96-98 and 99-00 intake manifold??

People told me that the 99-00 intake manifold have 2 little hole that will leak or something, but where would it be at?


Doing a d16y7 intake mani to d16y8.

 

the little holes are above the intake holes. they are tiny. i just filled them with epoxy and its held up to 12 psi so far.