I personally feel that a standard bore 200 block is better, once bored I have heard they are no better than a 205 block.

I don't know exactly what size bores weaken it though.

Long studded standard bore block "should" be bullet proof and although no one seemed to give me any answers on what caused mine to fail I am still very sure it was poorly built.

I dont believe for a min that they should fail and tbh Mike has already mentioned many time that ARP head studs are one of the reasons why they do