I have a brand new pair of Trick Flow 11R190 cylinder heads with the 56c chambers. They are fully CNC'd from the factory and come with 5/16" guide plates and ARP 7/16" rocker studs. They are 100% untouched. I bought them for a stock block 331 build, but later bought a Dart block and are going to a larger head.These heads have been out of stock for so long and Trick flow says they don't expect more until late this year or even next year. I will take $1800 for the pair plus shipping.I am set up for Paypal as well. [email protected] Ohio City, OH Aaron