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What are your air intake temps? Did you get the car on a dyno? I have a similar intake setup to yours, and iartemps are 50+F above ambient, and it is killing performance.
I've been away for a long time. No, have not had the car on a dyno. IAT does get high when the car is not moving but tends to go down when driving. No real performance issues. My 5.3 build is not as aggressive as some of the others here.
Added a TRW Power steering setup. Finally having power steering makes quite the difference especially when parking. The two braided stainless lines are the pressure and return lines to the rack. There is a bulkhead fitting between the "frunk" and the inner wheel well on the drivers side.
Installed the Z06 Corvette pedal which I highly recommend. Response and feel of this pedal is much better for some reason. I did not have to retune anything. This is the third pedal in this car and so far its the best one.
Updates to the engine bay.
Mechanical water pump, Renegade divorced throttle body setup, spectre 4in intake. Stainless braided fuel line with check valve.
Interested in how you mounted the Z06 pedal. I have one on hand but was planning on going with the stock 996 pedal if I could figure out the Porsche to GM wiring needed to make it work.