Big Block seems to slow

Yeah, that' s the thing.....goes great from 3000 & up. Trouble is...it has to go from 0-2999 rpm first. So a big cam, big intake, big carb etc are a poor choice with a 361.
So the issue is stock cam(if not stock not much bigger) big intake and big carb. Probably going to go down to a 600cfm from the 750 that’s on it and see if that helps more. But at this point I’m
Just glad I got it to where it actually runs decent.