Played out Escalade conversion 01Silverado

Still undecided as to which unnatural aspiration I want to do, leaning towards twin turbos, who would you guy's recommend for a built 4L80E, I will be in the 1000hp range.
 
Started molding in the ipad, bonded to the tabs so I can remove everything, just got to build the trim, and epoxy in my 90* pass through connection!