Well, if that's an all-original (internally) engine, then you're going to wanna get what Unit said (heads), plus a Cobra intake and a 65mm throttle body. If you get a MAF conversion, consider 1.7 rockers or an E303. This should get you moving.
Whaddya mean nitrous isn't available? Don't they have dentists in Italy? Steal a couple of cylinders for the rest of us, hehehehehe.
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Capri306, Moderator, The Mustang Works Online
1979 Mercury Capri, 5.0L -- C4 -- 2.73
1987 Mustang LX Notch 