"Little" C60 needs carb help+pics

[hudsongt500]

Hey, newbie to the site here(and carbs). Picked up this 69 C60 about a year ago, 366, 4/1 speed, ~37,000 miles, and need a carb. What do y'all recommend? I've read these motors usually run better with an Edelbrock but don't know which size/model to get and if I will need an adapter plate. Should I get another rebuild the Holley that was on it, get another Holley, or get an Edelbrock and which one? Thanks for y'alls help! I'll share some pics my truck and a few of my pop's.