What size carb on a 350?

[xfsketch]

See I was wondering the same thing for I have a 750 holley on my 350 and it isnt bored. My uncle (auto guru) told me that the 750 is way too much carb for that motor. He was right. I know somebody who has an edelbrock for $150 I might decide on getting. We'll see how things work out. As for this post, I can say that my truck starts up cold beautifully but once I drive it even for a minute it takes over ten cranks to start. I belive this is due to the 750 holley.