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I don't know where you got those numbers but they are not even close. 69 2 barrel is rated at 250 and 4 barrel is rated at 290. You are well over 200 now.
And h/c/i 351W should be capable of producing 400hp at the crank. A built 351W with internals and a well thought out h/c/i is capable of producing 400+rwhp. And be streetable on pump fuel.