Yet another 273 build advice thread!

toolmanmike said

The reason why Ma Mopar used a split camshaft is exactly because of the restrictive exhaust manifolds. Your large chamber heads aren't helping your compression. If you're building a hot rod motor the larger ports will help but they don't help you much on a 318 2 Barrel with very low compression. (Lower than stock with those 360 heads.)

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I completely understand the limitations of the build I used as an example which is one reason I used it. Even in my example a 260 adv. dur. cam worked REALLY well which made me feel that the 252 cam OP is considering seems a little low. Hmm. Another thing, I fully understand that custom grind IS "The Way To Go" but is there an off-the-shelf grind that has the 108 lobe separation and faster closing ramps that some have suggested the 273 responds well to ?