So, what do you have to do to make the B-Series Intake Manifold fit on the A20A3 Head? which particular B-Series Intake Manifold? is it the B16A2? B18C5? What specifically? Can you please give details on how to properly fit a B-Series Intake Manifold on an A20A3, cause I have an 89 LX-i Sedan and I want to do the same thing, and I know I have to convert over from 0BD0 to 0BD1...