I'm thinking it's about time to round up a set of aluminum heads for a 451 build that I've been dragging my feet on. I'll post general build details below but I guess I'm looking for suggestions on what heads would be the best bang for the buck. I've always had a thing for ported cast iron heads but this time I'm thinking it's time to take the leap. So, given the options out there, what do you guys recommend for the application? Pros and cons to each?

73 Roadrunner "400/451"
440 forged crank and LY rods
Ross Pistons. (12.5:1 + Compression)
MP 312/590 Cam
Weiand Tunnel Ram with 660's or M1 Single Plane
4 Speed Transmission
Dana 60 w/ 4.88 gears

FWIW, I'm not married to this cam and may consider going roller instead. Also, I will eventually being spraying the motor although how much and what method has yet to be determined. If I stay single plane, I will most likely start with a Zex plate kit I've got sitting here. If I go with the tunnel ram, I'll most likely end up direct port but that's another topic.

Anyhow, let me know what you guys think. Appreciate the help as always! - Trent