Thank you for all the cool tips! I didn't know that about Vortecs.
The Chevy 350 has been on my want list for a long time actually, though I'm just now getting into the position where I have some available resources and space.
I guess I'm going to have to study a lot beforehand when I go...
There's a craigslist ad with bad spelling and little info, but it's for a 454 big block that looks mostly complete, listed for $800.
Is it worth the money?
https://dallas.craigslist.org/ftw/pts/d/fort-worth-chevy-bug-blocks-454/7425201538.html