Yep, we changed over to the 270 heads on the dyno and made some pulls. Getting close to 760 hp even with the as cast Indy intake. This engine would probably make 775 or 780 hp if I had a really good intake manifold.

The oil filter is super clean after every run so that is good news. The block must not be moving around too much even though we are getting up there in power. There doesn't appear to be any metal chips at all in the filters so we just keep making pulls.