305 will respond differently to cams then a 350 would.
LT1 cam is a notch above an L98 cam. On my old 87, I went with a ZZ4 cam, which is a .495/.510 lift with good duration and civil lobe seperation.
As for heads, two major choices are the World Torquer S/R 58cc heads, a set of Aluminum L98 heads, or worked LB9'ers.
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2/20/2013: They Day the ****s Stopped
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