I'm doing pretty much the same thing you mention above, except no haltech and no E85 yet. I have AUS 740s, a 485 with the Specialty Z kit and a tomei type-L, I'm bypassing the FPCU and removing the oem damper. I did decide to use the CZP fuel rail and SS lines but I don't think that was necessary. I'll be replacing every other fuel hose on the car with Gates Barricade. Someday in the distant future I'll complete the E85 conversion but wanted to prep for it now. My plan is to mount the Tomei in the back left corner near the brake booster. Pretty much following what Nick from CZP did in these two blog posts. https://conceptzperformance.com/blog/defeating-the-stock-fuel-control-system/ https://conceptzperformance.com/blog/defeating-the-stock-fuel-control-system-addendum/ I realize they are from 10 years ago but short of going with top feed injectors and dual pumps on E85 for big power, I couldn't find anything out there that anyone was doing differently. Doesn't mean I'm right but I think this setup will be good for what I'm looking to do.
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