4-2-7 - And here I thought that referred to Chevy's. Oh well. Dad had a Pontiac Catalina wagon w/389 w/tri-power, that I learned to drive in. Myself, first multi-carb car was a '67 Porsche 912 w/split shaft Solex's. When we were a lot younger, my brother and I would fool around with the early 'Vette mechanical injection units. He put a '62 unit on his Cameo pickup which he had when he got out of high school. It had a three speed w/OD trans and would get really good gas mileage when we went go karting up in Oxnard. Other than the Porsche, all my cars have had one carb or FI (both mechanical and electronic) on them.