Those factory intakes are ussually ported, but it is possible to run 11's with the stock intake. BUT, you will be that much faster with the holley or TFS.
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-1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway
-1994 Ranger w/ 427cid windsor (daily beater)
check it out!
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