your going to need a turbo bigger then a gt35R for that 6.0. Were talking about a big displacement V8. They can spin any turbo’s in the book. Guys doing rear mounts even go bigger then a GT35R. Check out the F/I section on ls1tech.com…awesome site.
Get ATLEAST a GT40, GT42 etc. or T76…im talking those are the smallest you should go.