E-street vs Promaxx vs 440 Source

Sorry to ask this question of fornwhich I am sure has been asked if you again and again but do you have motor trend on demand?

318willrun said

BB mopar (440) street/pump gas motor.

• E-street - These tanked for me when I saw what Ed's machine found. Even a chamber bulged out putting the compressed head gasket ring on the inside of the chamber. However, reviews online are decent. Edelbrock 5090 Edelbrock E-Street Cylinder Heads | Summit Racing
• Promaxx - Not their full CNC ported head, these in the link. 1232.00 bucks fully loaded. MAXX 210 BB MOPAR (Sold in Pairs) - PROMAXX Performance Products
• 440 Source (Stealth) - Some have claimed these to be the "best of the off shore heads". Currently out of stock

Looking for experiences, maybe some have had these come through their shops, etc. At least 450, but maybe 500 HP
THOUGHTS ??

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