E-street vs Promaxx vs 440 Source

318willrun said

LOL.. you make this difficult. All the heads listed are to be considered "same use". They are all competitors. None are fully CNC ported. Yes, the truck does make the difference on how the header pipes are shaped for spark plug angle. But not for the Quality or Performance of the heads - if one has an edge over the other.

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Like I tell my customers if it was easy everybody would have one...
I feel like I'm in the book of three little bears... These heads flow too much, these heads don't flow enough, but these heads are ju----st right....
Admittedly off subject is told not to be LOL but I'm still completely trying to wrap my head around they had that flows from 3500 to 7500... They stall converter that probably is at least 3500... And how you're the only one on earth or at least on this form who isn't questioned about their combination of the vehicle that it's going into. Gears, cam, weight, expectations... 450 to 500 horsepower to do what? Torque???? ...