Time for a cam - which one for my cobo?

[withamc]

All right - I'm getting ready to tear into this thing once again and since I'm going to pull off the headers and intake, I figure it won't be much more work to just put in a better cam. I was thinking E-303, unless I hear some overwhelming response for a different one. I want it to pass smog, so I don't want to go too radical. Take a look at my sig and tell me what you think. Also, aside from the cam and gaskets, is there anything else I should be changing as well? Do you think I can get it all done in a weekend?

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86 GT, GT40P heads, Cobra cam, 1.7 RR's, Cobra intake, 65mm TB, 73mm Vortech, 24# injectors, MAC GT40P headers, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s.