Good video by @318willrun

I'm gonna make a guess and say you lost .4 secs. So from 13.3s to 12.8-12.9! Just my prediction when you finally make it to the track.
You, my friend, are spot on with my guess. I'm certain it's a high 12 second car. And I'm still running 2.94's with a stock converter and basically a stock 60 cam :)