it’s always blocked off at the runner, but I can appreciate not understanding this for the first time 🙇‍♂️　　
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You didn't seem so sure yourself, so I contacted them.

 

better to teach a man how to fish for a life time than just give him one for a day …
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took some time to revisit this and found that vacuum lines from the intake manifold to the vacuum block were a touch too thin walled and would collapse at high RPM/load situations which was hard to catch my brake pedal feel is far more consistent and better overall which made me believe that some of the power issue was because of bad data to the sensors. With that fixed and I swapped to the short runner intake manifold from EFI hardware and used some more metal printing magic to add a BAC adapter for idle help/warmup:




then re-tuned it on a dynocom dyno and now I am a member of the 200WHP+ club!

 

that is one flat torque curve, almost goes to 11 too!

 

some shorter air horns and shorten the exhaust runners a touch and I'm sure it would make power peak at 10-10,400 rpm
motor currently sits around 90psi across all faces/rotors too