The 305 has to go and know i am curious of what is all needed to go to carb. So far i know you don't hook up the computer but after that i am lost some what. What i am asking what you did to change to carb somewhat of a list if you don't mind? Also i was wondering where a good website or place to get a 4 bolt main 350 block?:lala:

 

This covers most of the first question. https://www.thirdgen.org/newdesign/tech/carbswap.shtml

If you buy a copy of Hot Rod magazine, or most any performance-related publication, you'll see plenty of ads for places that sell engines.