If it were a “science experiment”, where the goal was to try and make 550hp with stock 452’s on a 505ci build...... and there was a fairly unlimited budget to play with...... then sure...... it’s probably “possible”.
Roller cam, tunnel ram and two carbs, big headers, high compression....... those things would all still work to achieve success within the confines of the science experiment....... even if they aren’t at all practical for an actual street motor.
Built around the concept of a street motor, stock iron heads on a 505 will make a bunch of low end tq, and end up making peak hp at a fairly low rpm...... and as a result of how the curve and math work out....... the hp number will just end up being not very high.
