I'm wanting to do this swap from the 305ci to a 350 crate motor. can someone tell me what i can use off of the 305 and what i will need to get new? i'm puting it into a 1985 k5 blazer.

 

Just about everything will swap over. All the accessories are the same. The 2 motors are identical on the exterior. You will probably want a different carb, but the 305 carb will work. Should be as simple as putting another 305 in it. Good Luck!