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Message: <blockquote data-quote="LAFENATU" data-source="post: 671789" data-attributes="member: 10097">Well port size and the way they look are one thing, velocity is another.Did he do the portwork, did he have them flow tested? Granted he only wants $150 so if not it's not a big deal. If they are apart then I would see how much the machine shop would charge to do a larger set of valves. The GT40 valves would probably work well and are definitley better than the baby d1ck E7 valves.. GT40 valves are 1.84/1.54.I would see if he would do ~$100. Tell him you have to pay to have them re-assembled..see if he goes for it. Now you have to compare them to stock heads and see how big the ports really are. These are ported both intake and exhaust?Post the pictures...let me see them.</blockquote>