440 Head and cam question

I am building a 440 now with the 516 closed chamber heads, I have used the 2.14 intakes , the 1.81 exhaust valves and opened the pockets to the bottom of valve seat, Ports were massaged, the exhaust is really bad with that lump just under the valve seat, I "massaged " that really well. milled .030, I will be using a comp cams [email protected] and [email protected] exhaust with .467 lift, with the stock upswept design 6 pack ex manifolds, I have gasket matched all the ports . the intake is a alum 6 pack set up. I am looking for this car to SCREAM with it 4:10 axle....good luck