Small block bottom build horsepower limit

Read what he said again, said it wouldnt
last racing it at all. “ It wouldn’t survive one of my race seasons”
John has a light car, and the last few years hasn’t raced all that much, probably less than me( except this year this far).
This guy races at a track elevation of 6000 feet, you may have missed that.
John has probably made more passes THIS season than your buddy has in the last 5. That's what I think he was getting at. And if the elevation is the excuse, post the rest of the particulars of these passes, I'm open minded!