im building a turbo 6.0 at the moment, my 5.3 made 660/660 on 12.5 psi and pump gas kbracing kit, and cxracing turbo. my truck would run high 11's if I could get it to hook. ext cab 4x4. the new build im shooting for 750 to the ground on 91 and meth. I think a turbo will get ya there and sound wicked doing so. best thing is I still retain good fuel mileage.
I built a set of efans myself and haven't had any issues. I Live in southern AZ and no heat soak issues. as far as lag... My set up spools quick but I think my converter is matched perfect once it flashes its gone.
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