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bleed valve installed on the control line to the 2.5" air box valve, now have most but not all of that bottom end torque lost with opening up the box for the valve. The valve is closed now to around 10 inHG of vacuum. On the drive into work I had CC set (vacuum controlled on a cable throttle body) and it could not hold speed up one of the ~2 mile 400' grades at the 62 I'd set, looked down and speeds had crept up to 65 mph. I would bet if I'd be willing to go back to the stock TB (current is bored to 70mm, stock is 65 or 68mm iirc) it would have an easier time under greater loads holding speed... but I'm not.
So now I have a good compromise between the closed air box torque and the open air box mid range hp.
The only thing left that I'd do is insulate the remaining vacuum lines and tube ends, otherwise this has run its course.
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