again 273 wanna hear your opinions ...

It will work if you make it work. Correct springs, You may need to machine the valve guides for clearance with that lift. And don't forget valve to piston clearance. You will need a converter and like they recommend at least a 3:55 gear. It won't have much vacuum (If you have poser brakes) and it will idle like a top fueler. It is not necessarily a mild cam for a 318. It will be rougher in a 273. Because it's hydraulic you will need the correct pushrods and I would recommend adjustable rockers.