PBR Small Block Heads

Still looking for a set of John's heads. This could be a purchase or a borrow/loan situation. John had a lot of success porting the Edelbrock and Speedmaster style heads. Ultimately I would like to test the heads on my bench against other similar heads and perhaps get them on a dyno to see how they compare. If you have a set or have interest in seeing the results or learning more about my intentions, please send a PM.