who should i send my head to be be ported? i have seen heads on ebayhttp://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2488816958&category=34284&sspagename=WDVW , but those are lookin kind of cheap so i think i am gonna just have the stock one ported. in about another month the season is over hear in michigan

so its almost time pull apart the 50.