I remember reading about that blazer a couple of years ago. Its a CUCV from Germany a guy in holland bought from the army at an auction. Its a twin turbo built from parts scavenged from Volvo construction equipment. The builder worked for the Volvo dealer so he had access to parts

. It seems he used smaller turbos for the twin setup, well thats how I remember it anyway. Thought the build details were on
www.thedieselpage.com but don't remember where.
George