LT1-LT4 Modifications - Quick update on my opti spark project

So, yesterday, after 14 hours of tying to fix this with no success, I went to bed.

Got up this morning to finish working on it. Took everything back off, reinstalled the opti, went to crank it.... It cranks but doesn't start.

I don't get it. I have tried everything.

Ideas? suggestions?

Shoebos has a nice guide about how to track this stuff down, you can test the signal from the opti to the ign module and from the module to the coil etc. I would try that out.