Great threads, I'm new to forum but I've been around Cadillacs at many times during my life. As for the engines the 500 cu in that resided in my moms 76 Eldo was unmatched in torque. Then the next year she got a black Eldo Biaritz with the 425 cu in Oldsmobile engine. It was a good engine but no where near as good. I had a '73 Fleetwood 60 Special Brouham with the 372 cu in which with carefull driving, tuning and tires delivered 15 mpg during the '77 gas shortages.
I worked in production maintenance with GM's Rochester Products Division when the Alante was introduced and I serviced the area where the fuel injection system was hand built by 1 employee for only 8 hrs a day.
My '73 Fleetwood
