Dont know about that. But, this is obviously just good marketing. They pulled out all the stops for this power.Well, that's an 11R kit on a 306 with 11.0:1 compression and i'm not sure what a track max cam is or if it has the specs to clear, but my guess would be it doesn't.
Also has a carb.
If you are going to go that route, you might as well just build the new engine now from the ground up.
The 53cc heads are probably milled too to boost the compression to 11:1. I'm going to go out on a limb and say they didn't run any accessories and got gross horsepower. Take 10% off for that.
I'll admit, though, the trackmax cam looks milder than I expected: