First of all with the b303 cam 7200rpm is nothing but a dream. Chances are that you will need a sold cam if you want to spin it that fast. As far as the heads go, canfields will be a exellent choice if you are building a blown high rpm motor. Canfields may be a little big on a 302 if you are only going to take it up around 6000rpm wich is where you will be making max hp with the b303.
The systemax intake would be a better choice if you are going with a high cfm head. You would spend more money in the long run buying the cobra intake and port work to get it to flow where you want.
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79 hatch w/ NA 347,stage 2 Canfield heads, out of the box Victor 5.0 intake, solid roller cam, Aeromotive fuel system, proshifted TKO II.MY CAR
http://www.mustangworks.com/cgi-bin/...splay.cgi?1288
93lx all stock + tremec