273 Engine will not start - Ideas?

All wiring is new. Was hoping to actually get it on the road this summer.

Timing was rechecked and still right on the money 10 deg before TDC.

I'll try a compression test, since I am not familiar with the concept of fuel washed.

As for wondering what changed - that's my thought. Nothing has been done engine wise since it last ran. Been working on interior carpeting and now seats. Go Figure!