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Quick update.
1. I have 7 holes. You will need to remove alternator and aos to drill pass. Side but thats easy with everything out. Unintended benefit is that woth 996 setup, its easier to get to everything by taking off upper plenum only. So no fuel lines, aos lines or similar.
2. Although im marking well, my drilling has not been brilliant. The holes are straight but frankly off the mark. This i think is partly due to not being able to see your marks when using the drill block. If i was doing it again, i would likely go freehand.
I have managed to get everything together by enlarging directionally the holes in the lower plenum. Im not proud of it but drilling in situ, its somewhat unavoidable in my head. The ports in the head are bigger than the intake so you have some margin for error. As long as there is no protruding lip at the connection, you should be ok.
3. God the center portion gets gunked up. What a mess. Im not gonna make it perfect.
4. Im not sure the extent of this work will be worth the effort, but we'll see. Not too many power adding options that are cheap so the sweat equity is the cost
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