Intersting. I pulled a 304 out of a 73 Commando and it had aluminum bridges.
Your engine is missing the rocker arm bridges.
I just threw a 304 in the scrap pile after listing it of facebook for $200. I pulled the crank for my 360 and saved the bolt ons. Block, heads and...
It’s rough. https://www.facebook.com/share/Me9qkHxA8Fu98jFP/?mibextid=79PoIi
Its used if you need to reduce the fuel pump pressure.
That's a good deal for a Napco. A friend of mine sold his for $150K to Aaron Lewis.
Gone whatever it was.
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