199 Ducar heads

Yes, I've built 2 motors with the 199 head. I saw no difference power wise from a 158 head motor. These were both AKRA motors. I had Barry Young port and flow them.
 
Wouldn't most ported and flowed heads , provided the cfm was similar . Preform the same or near to the same ?
Unported would be a better comparison for nka racing .
 
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The inches of water you flow at will change what you see on the flow bench! 28 inches see different numbers that one flowed at 8! Please compare apples to apples!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
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