showdown496 I have a set of 990 heads on my 468 rite now making about 800 hp....they are ported to the max..also have a victor intake that is port matched to the heads..I have a mud racing truck and they changed the rules this year so I can run alluminum heads..willing to make trade or sell outrite..if your iterested give me a call at 318-613-6632 if it goes to voicemail leave name and # and I'll call you back...thanks Chad