so i finally found a good set of heads in my price range (under $550). a used set of World Sportsman II's with a fresh valve job to boot. only thing is, the guy said they are for 87 and up intake style. i looked and looked and couldn't find a set of sportsman II's that advertised anything but the normal oldschool intake bolt pattern. is it possible? whats the difference? is it just the center bolts are angled differently? i really REALLY can't afford to buy a new intake if I get the heads. can i use my old intake with slight modification? The price on the heads is perfect and they are the last thing i need to finish my 383 build. any input would be appreciated.