New G3 Hemi Block...

replicaracer43 said
Just try to find a usable R3 block.....and hope you dont get stuck with one of the ones with the wrong cam tunnel machining. And a 300cfm LA head ain't easy either. I love the LA platform, but it is pretty obsolete by today's standards.

True. But Ritter is making blocks. And you’d be hard pressed to find a better block for the SBC from any manufacturer anywhere.

The TF flow is pretty close to 300 CFM out of the box IIRC. So the stuff is out there.