Over the last 35 years or so, I have owned a number of vehicles with various sizes of all engine familes mentioned under the hood. I had one time 2 55 Dodge 2-door hardtops, one with the Super Red Ram 270 Hemi w/2 Bbl (183 hp) the other with the Red Ram 27 Poly w/2 Bbl (175 hp) . The total difference in these two engines were the headssss, pushrods and valve gear, rocker covers , and exhaust manifolds. In 68 I installed a 56 Plymouth 277 in a 46 Dodge ¾ ton wrecker it made a real nice truck out of it! That year I also ran a 59 Dodge with a 326 and a torqueflite on a 1/3 mile dirt track here in western Wisconsin for a few weeks but was badly underfunded so I didn’t do very well. By the way, to my knowledge, the 326 was offered only in th 59 Dodge and was the only version of the family equipped with hydraulic lifters. It had approximately .040 larger bore than the 318 but I don’t know whether these were recored blocks or simply overbores at the factory. In 64 and 65 I served on the pit crew of a 33 Plymouth coupe running as a Modified on the previously mentioned dirt track. The engine was a 301 bored to approximately 324 cubes, running extremely oversized 332 58 Ford pistons modified in the owners lathe. He used a bootleg Isky reground cam, 12” pipes off the ports, and an old teapot Stromberg 4 Bbl. No porting, no balancing, just 12 ounces of liquid ether to every 10 to 12 gallons of hi-test, as most of the field was doing. Our chief competition was running a 352 cube small-block Chevvy that was fully blueprinted and balanced. We took about half of the first and trophies those two years. You are the first to mention a dual quad option for the 56 Fury that I know of. Must have been quite rare. Must have been quite a surprise to the unwary Blue-Oval or Bowtie driver. I currently have two 60 Dodge 318 engines in my shop, one of which will be installed in my 45 Dodge High-boy street rod pickup. I think I know where a 4 Bbl manifold and AFB can be gotten. Anyway, I hope this information will be useful to you and whoever, or atl least interesting. If you know of any other tricks for this engine, especially economy related, I’d love to hear them. My streetrod will only weigh about 2300, so more power for a daily driver is not really critical. Paul D. Hoffmeyer River Falls, WI. Hillside@ameriga.net