I have 2 old cast iron 4BBl's and 1 aluminum 4BBl factory intake. If you want to keep it stock I could help you out with maybe one of them. I went semi-hipo and to an aluminum Edelbrock air gap one with a Holey 750 DBLPMPR.
I also can help out stock wise. I have a 4300 289 carb as core or rebuilt. I think I sold the intake though. I have an aluminum hi rise. $100 carb $50 core $150 rebuilt. I have Holley 600s $50 and up to $150 also