I can buy a brand new 4792 350 cfm from holley for center but they dont have the 500cfm 4789 amd 4790 outers. Looking at the 440 outers they are the exact same 500 cfm same body, same linkage, same style. I was told the jetting was the only difference and I can run it MrNorm did it with chevy tripower part numbers on there rare demon 340 six pack cars. Im running a hot cam .494/.513 & 268 /276 duration. Will running this setup work? I prefer to buy 3 brand new carbs then deplorable setup that need thousands more for rebuilding.