20+ years of "Building 904/727 for drag racing use"
There can be. I'd say up to 500hp naturally aspirated with a lighter car you'd be fine. I've built several.
However, the weak link will be the factory input shaft/forward drum. The input shaft can rip out of the drum.
There is not an upgraded input shaft/hub assembly for the A500, 42/44RH&RE transmissions available at this time.