273 adjustable rocker conundrum..

instead of grinding the bottoms of the rockers, like we've all done. I think using beehive valve springs would be the way to go.
That's certainly a real option. The real reason though is because the geometry needs correcting by relocating the rocker shaft. But the beehive option or rocker shaft spacers are equally expensive and I really don't think it's worth doing with what he's doing with the engine. Were it a high RPM hot street or race motor, yeah.