most people would be of that opinion that 230@50 is 230@50 but the two cams couldn't be more different..That Lunati cam is nice and only requires about a 100 lbs of seat pressure..While the cam for this 273 might have a tiny bit more duration it requires almost 150 lbs of seat pressure..The lobes on each cam are on different ends of the spectrum...that old saying**you can't tell a book by it's cover** defiantly applies to camshaft duration