Too much carb, a 600 is more then adequate especially when using an Edelbrock Carb. Get the calibration kit with it. Too big of a cam, doubt the lift would even work with the heads without coil bind. Try the Comp Cams "Cam Quest" software (it's free on their site), then follow it up with a call to verify with one of their techs.

What car is this going in, what's the transmission, what's the rear gear ratio??? All very important items when selecting your components!