That’s the huge factor many forget, how much potential does the platform hold for the common mods?
The 5.2 appears to be a beast, but the LT4 is no slouch. These are 1000whp all day long with headers/intake, fuel system upgrade, procharger F1A and e85. Not sure that you even need heads and cam but could be mistaken. RPM has a vid of one they did that hit 1k.