Faster start up.

I'm looking for a little direction on how to get a faster start up while cranking. I thought maybe advance cranking timing but maybe it's more related to rail pressure? I've datalog start up and see stock is about 2* main timing but the actual start up seems like possibly closer related to rail pressure? I really like how quickly the truck fires with Robert Ivey tunes. Anybody willing to share info or point me in the right direction?

Thanks!

Add more rail

Thanks Les!

I'll give that a try.