If you want it to look stock and make any power, you will have to junk your stock manifolds. Can you live with headers? If not, you will NEED a set of HP manifolds. Holley SD intake is a good one, if you grind off the lettering and paint it, it would pass for stock to the casual observer(especially once it's tucked under your air cleaner). 528 cam would be a good choice IMO.