I got a set of TEA heads here.. and the work is EXCELLENT... far better than any TSP/PRC heads ive seen pics of...
a 228/232 .6xx 114ls will put you in the 500 rwhp teritory and still idle like a kitten (perhaps a hungry one)...
i had my cam custom ground from specs by Patrick G, on ls1tech.. but there are others, predatorZ (also ls1tech) is another competent cam guru that does great work
TEA comes highly recomended and id chose them over TS or patriot any day....