That link shows us exactly what is to be expected: lots of handwaving and babble and assurances. Zero support, zero evidence. Typical!

Do what you want with your own parts, money, and time, but this groove thing is a nonstarter.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

The wonderful thing about this Internet, I can make up a shiny website and post total crap with fabricated claims and "proof" and people will believe in it because I have a shiny website.

Hell, there's people who actually believe you can section 5.7 Hemi heads, glue the pieces together and bolt them on a Slant 6.

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Official Cookie and Mater Tormentor.

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'72 Duster 198 stock cam, 3:23's

93 D350 Cummins THD Maxfuel 35mpg parts to hit 400hp+ Suncoast Cat2 A518, converter DDP Stage III injectors 62/64 HX35, 3 piece manifold, 4" Diamond Eye, Gear Venders OD. Stage I street/tow PDD head on order.