I like how every time something doesn't fit with peoples preconceived notion it must be a lie.
Why would this engine builder lie, is a 360 hp 273/292 gonna sell them a ton of heads and crate engines, sure they could be.
360 hp that's nothing compared to Jim's 273 build, 470 something as I recall at upwards of 9-10,000 rpm. N/A at that. lol
I see no reason this little engine couldn't make 360, when we got guy's claiming 450 with a mediocre 360. lol