The 625 version is enough carburetor for a mild 360 unless you plan on some major upgrades. On the dyno, measured airflow on my test mule was less than 600 cfm with any carburetor I tested on it. Test carburetors ranged from the 625 up to a Holley HP950 that utilizes a venturi size similar to a 750.
I'll see if I can find the cfm comparison sheet or print out a new one. Too big of a carburetor reduces the signal due to lack of vacuum at wide open throttle.
Keith