Carb for 408

As far as cfm is concerned with the CID and cam known, 750 cfm is right about what you need dead nutz on.

Now what carb you want is another story. I truly believe that IF you yourself are going to tune the carb, then you should decide on what manufacturer it is going to be. Be comfortable in what your using. Don’t listen to a soul. Use what YOU want and feel good about tuning. Because for a street vehicle, any HP or torque difference between the various carb manufacturers and styles is slight and only visible on the dyno or track at the top end. Where your rarely driving.