I appreciate all the replies!
If I pulled a junkyard Magnum 360 with stock and probably cracked heads and added a crosswind intake, headers and my 600 Holley carb would I have anywhere close to enough power?
I could buy the motor, oil pan, new balancer for LA style pulleys, electric fuel pump and intake for around $800.
Once I figure the direction I want to go, I'll start collecting the parts and do the swap this winter.