Thad,
Congrats!
I worked out my problems from my other thread. I'll update it later if anyone cares to check.
But since I've fixed it, it started right up in the cold today. Again, my car starts better the colder it is.

I think my more recent backfiring problem was because I had my priming pulse firing after two seconds but had spark firing right away.
So I'm thinking what was happening is when the inj would first fire to get the air out the rail, there would be some air and fuel in the line and it would catch the wasted spark and backfire. I don't know... I'm reaching but it hasn't backfired yet in the four starts I've given it.
But I'm also having the initial "cold" start die after a second or two.... and if its running and I turn it off before its all the way warmed up, it won't start again w/o a lot of cranking.