A little update. I put about 2000 miles on the engine, then had a (Comp) lifter bleeding down. Sooo, It's been off the road for the last 4 months while I rebuilt it. I had to change the cam (another Summit 6401) and switched to Johnson SEC lifters. I also had to have new push rods made. We broke it in yesterday. All went well fortunately, so it looks like we're back in business. What a hassle, over one bad lifter...

I made a video of it running...
http://www.youtube.com/watch?v=3sENN5TdGLI&feature=youtu.be