I swapped the cam, intake and carb on my 470. Best combo so far made 675 hp and 630 ft-lbs of torque. Running unleaded fuel with 10.5 compression. I'd like to hit 700 hp but I think it will take a custom cam and some intake porting to get there.
I changed over to a new cam and picked up another 10 hp so now I'm at 685. I'm sending the intake to Wilson for porting and then we'll try it again. I also have a new 950 Dominator on the way.
The new intake manifolds from Trick Flow are supposed to be ready to ship. I have my order in for one of them.