Worse combustion chamber design ever? Saveable?

oliver said

I wouldn't say so. I've dealt with hundreds if not thousands of different cylinder heads and I've never seen a combustion chamber where the intake valve is down into a pocket like that. After some research ford only used this head for one year. It was that big of a failure. Factory rating on this head is down 25hp previous year and next year.

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Ill have to re read your post. I interpreted it as you were aiming at the chamber shape itself being intrusive. You can buy lots of aftermarket iron heads, well...I wouldn't say lots but I quite a few.. where the valves are literally sunk a bit. Many people get their heads reconditioned by old-timer shops that do it...or after many valve jobs the valves are also very sunk. There is more to a good valve job than just the seat.
25 horsepower is right ...because almost every bit of the sub .400 lift is snuffed.
So when you hear a general statements by some folks of how low lift or big low lift is garbage or hurts flow ,a power killer n all these other things... take that with a grain of salt because it takes some unique circumstances to turn a strong low lift against you and you could easily see that in the crystal ball by other issues with the port.. A simple maching process could have remedied it but would have cost them i guess n so they reverted back im guessing.