W2 flow #s and Custom roller grind. What do you think?

I just got my W2s and Custom solid roller back from Ryan .
This is for a 408 hooked to a 833 in a 69 Swinger. I am going for a street strip sleeper.. I plan using TTI W2 Race headers and a single plane intake (undetermined) .
I was surprised at the amount of lift !

Whats your thoughts?
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Cam grind is , nice.. It's strong enough, to run 6500 plus, out the back door...