What would be the reasoning be to buy the GT40P's over the GT40X heads? The X's are aluminum, wiegh 25 lbs less each, don't require special headers, flow a lot better, and only cost about $100 more then the P's. if you are buget minded, then why not the GT40X heads??
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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)
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