Originally posted by p5861:
if you were looking to go to a 350 FI engine with the 700r4 trans combo what donor vehicles would i want to target specifically?
You've really kind of answered your own question. You want one with a 350 FI and a 700r4. So a '84 to 90-something Corvette is a probable donor because most had that combination (unless the car had a manual).
With the other rear drive cars many had the 305 instead of the 350, but Camaro and Firebird are possibilities.
Also look at pickups starting in '88 or '89.
I don't recall what year the 700r4 was replaced with the 4l60 but that would determine the newer limit on your search. Except that until the 4l60e came out the two are the same transmission. Do you really want a 700r4 or do you want an automatic with overdrive?
What FI are you looking for? That would narrow your search a bit. Pickups never had TPI and Corvettes never had TBI unless you count the '84 crossfire system.