The voo-doo cam lobes will work with chevy lifter diameters, just because they don't use that exact lobe on a chevy cam does not mean they are not chevy style lobes. Just look at the how fast they lift VS duration is on those lobes, they fall right between two chevy cam lobes in both lift and duration.

Patrick is correct, the narrow LSA is gonna suck all the fun out of the engine, either one.

Just to clarify I would use what I had even if it was just 383 stuff, even though I know the 5.9 magnum would be a better package.