Eric, I am a big fan of the Quadrajet as well. Our '72 Lemans had a '70 455 with a 230 degree by .480 lift cam, headers, and a '69 Ram Air III Q'jet. That car was much smoother to drive than our L78 Chevelle, made considerably more power as well, and gas mileage was about 4 mpg better to boot. I plan on buying a wide band O2 sensor to better tune the carbs. Some people see fairly big gas mileage improvements, basically because the carb was so far off in the first place. Being retired now, I thought that I would have all kinds of time to play with this stuff. Not so. I don't know how I had time to go to work and get the stuff around home done too. A common lament.
I'm keeping you in mind when I get the 4346 from our 427 restored. Our mild 350 el Camino has a 4010 Holley. Starting is excellent and it drives fine but gas mileage is not all that good. I'm afraid to take it apart because I don't know if I can even get a rebuild kit for it. At least it gets me down the road the way it is. I have a q'jet of the shelf that will probably get a rebuilt and a home under the hood.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now.
