[mbxlesney]

I was living in the Phoenix area for 8 years and met a guy that had a original 60K mile 70 L78 Nova with all the paperwork, POP and Window sticker (Before Repops)Late 70s originally sold through Courtesy Chevrolet that had HD Cooling on the window sticker (do not remember RPO # and had the 7 Blade 772 Clutch Fan and 4 Core radiator in it due to the high temp.s. Also had seen the COPO radiator installed on another probably dealer installed. GM had a proving grounds in the area they could have had some influence on cooling these solid lifter motors in the AZ. heat. Too bad there are not any of these GM proving ground guys out there to verify a few things. Seems like the Hobby does not have the luxury of speaking with actual X GM employees, assembly line, and proving ground workers enough to dispell some myths.