E-street vs Promaxx vs 440 Source

FWIW, even though I don’t have a B engine up and running now, the two heads I’d consider would be ether the CNC Shocker ProMaxx, my SB CNC Shocker heads were very good and clean when I got them, or, the TF heads.
CNC ported or TF are out of the price range, and doubt that much flow is needed to achieve the goal. TF has my respect for producing Quality heads, but I'm not going to spend 2300 bucks just for heads on this particular project.