High-zinc oil or ZDDP oil additives?

yellow rose said
I know guys don't like to gear it, but that oil is one of the biggest horsepower thieves out there.

The oil you have is fine as a base oil. You need a quality additive, OR you need to spend way more on oil per quart.

I pay about $22.00 a quart for oil right now, and I do it gladly, with a smile. After thousands of dollars of testing, I can tell you oil does make a difference.

That's a lot of money per quart, does it come with a money back offer if the Torco 10w30 doesn't make a real HP increase like at least 5HP more on a 400hp engine over the VR1 10w30? Otherwise it's just BS.