Is a 750 carb too big for a 327?

[prostreetC-10]

Agree with the above. Just remember the cfm calculator is just to get you into the ball park. There are a lot of variables in correctly picking the right carb though. 400hp is a lot of HP out of a 327. The Corvette 375hp 327 L84 was a nasty motor. You would have to have some pretty serious compontent to be in that range with a compression that is almost not streetable. How do you arrive at the 400 HP? Cool thing about a well built 327 is you can pull those rpms to the moon!