Remounted the cowl mold, and saw that it had some fit issues (sub size) that I just was not going to be able to readily fix, also I was not happy with the front and how it it would mate up with the spinner.
So the first has to be considered a learning experience.
Just cut 3 more foam blocks and epoxied them together. I only put epoxy in the very middle so as not to have a hard glue line that would be all but impossible to smooth and shape.
I will screw it on from the back using sheet rock screws through the motor mount bolt holes. Then sand the sides, bottom, and top to match the nose of the plane with a sanding block. Then transfer my alignment lines. From those marks and lines I can transfer the angle of the engine and length to the front of my new mold This time I will make a hard ply spinner ring and glue it on. I have to be sure and subtract the width of the ply ring from the mold.
Then with the mold screwed to the firewall I can start shaping it.