[Mrmerlin]

from the ether report we know the timing is good otherwise it wouldnt run.

What is missing is fuel so you have an injector issue.

BTW more info requested.

Please describe exactly what year engine and year harness went into what year chassis and CE panel ,

since every model year engine wire system is slightly different,

a plug and play version approach may not work as you think it should.

after you answer these questions it will make it easier to figure out where to proceed