I Have a set of Trickflow Twisted Wedge heads that have about 4k miles on them before they were removed. I had them cleaned and about .004 milled off them the clean up the seating surface. They were bolted on my 331 but I decided to go with a different set. P/N is TFS-51400004. They include a set of Ford Racing 1.6 Roller Rockers and Trickflow pushrods. I will have pictures up tomorrow. The link below shows the specs. $1000 plus shipping. Email me at Frank91lx@msn.com if interested. Trick Flow Specialties TFS-51400004 - Trick Flow® Twisted Wedge® 170 Cylinder Heads for Small Block Ford - Overview - SummitRacing.com