All GTs from 96 to 2004 OHC ( Over head cams ) have 2 valve per cylinder so 16 valves.
I should say from 1964 to 1995 they all have 2 valve per cylinder , just Cobras 96 up have DOHC ( Double over head cams ) and have 4 valve per cylinder so 32 Valves.
2005 GTs will have 3 valve per cylinder so 24 Valve .
ah see my friend is a pretty big mustang guy and he thought that the gt came w/ 4v stock. hehe he was wrong and now i can rub it in his face , thanks for the info!