Need help w/71 C10 project

[DD1]

I got a 71 C10 to work on as a project. The people I bought it from put in a Chevy 305 engine w/auto transmission, taken from an 85 (or so) Camaro. I am not thrilled about it being converted to automatic, but will live with it for now.

The carburetor is a Quadra Jet, which has a Mixture Control Solenoid, so my understanding is it won't work well without a computer hookup. What's the best manual choke carburetor to get for this truck?

Also, if I were to switch engine or trans, what's the best combo to get?

Thanks!