I did the Vortec conversion on my pickup when I discovered my original heads were crap and needed so much machine work that Vortecs were only $100-$200 more for brand new, higher performance heads, etc etc...
Anyway...that's all out of the way, and the truck's running great.
However, my carb is the Edelbrock #1901 QuadraJet that I put on 3 or 4 years ago...and the Edelbrock Performer manifold for Vortecs doesn't have the choke provision. So, right now, I have the choke wired open. So far it's starting well - disturbingly so, actually, better than it ever has - but then again, I haven't had a really truly cold start yet. Am I going to have to precision-jerry-rig a manual choke onto it? What have you guys done in similar situations?