I have heard the Indy block may have interference issues with some headers as the oil pan rail (mounting surface) is a little wider.
I really like the KB block, but getting one is another story.
Don't let Indy do all the machining, it will need fixing. BG can finish machine it, or just let BEST take care of you (good customer service).
I know the INDY hate level on this board is high, but this is actually a pretty ridiculous statement.............So you are saying that a shop that sells no telling how many complete race motors a year that run well, can't do machine work? The problem is people don't give information. They say "I want a finished block" and then when they get it and it isn't perfect, they biotch. But did you tell them exactly what finish bore size you wanted. What RA finish you wanted. The exact deck height you wanted. The lifter bore clearance you wanted, etc. INDY has state of the art equipment and can do anything and in my experience WILL, if you ask them to
