Anybody break a stock block, if so at what hp?

Ya, I'm sorry had no concrete advice on it. I do know lots of people think 600hp is too much for a stock block and that definitely a load of bunk,,,if you build it right. I'm at 600 and like I said if I had gapped for spray I would definitely run a 150 shot without thinking twice. With only 150 maybe the gap might not be a big deal anyway, I don't know, I haven't spent any time on the subject. But 12 yrs ago I had Mustang GT daily driver that I sprayed 150 on the factory bottom end and never had issues. Good luck with figuring it out, I'm sure someone with experience will chime in at some point. Cheers