Quote:
Originally Posted by Ross
The deck surface enable better gasket sealing at higher pressure levels. As well just a good valve job on the genx 255 will give you better flow, the base valve job leaves a bit to be desired. Multiple head companies offer a better port program as well. Also they are available in a 6 bolt options.
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This is true, the genx gives you room for more lift as wel iircl. God I love LS3s lol
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