[USAFS197]

I don't think the burden of proof is on him considering the plethora of data that's out there. As he stated earlier, the previous iterations of LS engines were under rated. However, if the adoption of SAE standards from 2006+ is indeed true, then it would stand to reason that the old LS1/2/6 engines would fall in line before this adoption. From here on out, the concept of under rated engines is likely misunderstood these days. More likely, transmissions and their application to the wheels has become more efficient; leading enthusiasts to believe that the engine is under rated when they're still abiding by the old 15% rule.

If you doubt his ascertations, it would behoove you to research the topic yourself as a pose to interjecting a seemingly pretentious snub. Venture on over to LS1tech or any other reputable forum and start scouring around. You'll find the information you're looking for.