Push Rods which one?

That sure is a nice looking motor. Be a shame to see it turn into a boat anchor. I thin I would go with experienced eyes and not a guy on the phone. You didn't happen to mention you bought the pushrods for them did you? .045 - .015 steel head gasket = .030 If 1 thread is .045 @.030 you will almost lose a thread. You got plent of room with those deep valve pockets.