Don't waste your money on the GT40P's, Get the trickflow heads.
They are MUCH better and don't even compare to the GT40P's.
If you can not afford the trickflows, atleast get the gt40X heads.
The trickflows also have GREAT potential. You can have them ported to flow 320+ cfm!
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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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