You can get a phenolic spacer that blocks the exhaust gas passage. This will allow you to remove the coolant lines from the EGR spacer. Doing this will actually make your upper intake pretty cool. When I had a 1" spacer, I could touch the upper intake after running the engine for a while and it felt like my car was parked.
Seeing the dyno graph would definitely be a big help for people offering advice.
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