Highest flowing sbm heads?

B3422w5 said

Jack at Valley performance and Machine built a 370 ish inch 360 that is under 12 to 1( it will run on pump gas) that made anywhere from about 740 to 780 depending on what dyno it was on.
uses production 360 block, and a very small duration cam(255@50) won a big competition with it. Have posted the build story on here several times, easy to find the info.
it uses Eddie Victor heads.
could make 800 very easily according to Jack with bigger cam, etc.

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That's an amazing build, thanks for sharing. Shows what some creativity and an incredibly well sorted build can accomplish. Mind blown!

This definitely makes me lean towards the victor heads.

This brings some questions and takeaways to mind for me:

1. Cryo treatment of the OEM magnum block
2. Suggested superior metallurgy in the Magnum. I wonder what testing if any has been done to come to that conclusion.
3. Wow they bored that thing out a bunch. I wonder if the block was filled? I bet that helps a good bit with deshrouding the valves.
4. I wonder how much power was gained with the oil mods?
5. Interesting that they went counter to conventional wisdom and went with 4 bolt caps.