I'm thinking Trick Flow may very well have done what they advertised. We have one 440/446 Trick Flow build using a Edelbrock RPM intake and a 6-bbl set up. Solid roller cam 238/242 @ .050 112 LSA .600/.600 net lift and 9.9:1 compression. Both set-ups made right at 590 HP. This is dyno graph for a 6-bbl run. Date and time are wrong on the graph, I didn't reset the computer after shutting everything thing down. This really isn't in response to fast68 post but the above AndyF post.

dyno graph

6-bbl dyno run