On my air-breathing G model, I used the MP port on the forward induction plenum (the Y after the air filter) when I put in my GI275 EIS. See pic, blue arrow points to port location. You may also need to check MP plumbing where it passes thru engine baffle at right rear behind cyl #1.
Last edited by Learjetter : 11-28-22 at 10:14 PM.
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