I would build a 400 and learn how to save yourself $1000 on a 4 hour R&R of a motor. I charge $200 for R&R of a motor. 1.5 hours disassembly and 2 hours re-assembly.
$1000 is outrageous.
You can run a 4 barrel carb on a 350, but not with a 2 barrel cam and heads..NO!
A 350 will cost you 3-500 more to rebuild than a 400. Find a 67-71 400 core, rebuild it and swap over all your brackets, accessories and pullies.
Not to steal the thread but could you (Banshee) explain your comment on not running a 4 barrel carb on a 350 with 2 barrel heads and cam.the reason i'm asking is that is how my 350 is set up.i'm not a engine guru so just looking for your reasoning,maybe something i should look into in the future.