Edelbrock Heads on 318

Would like to hear your opinions on using the Edelbrock Heads on a 318. I'm currently using 360 J heads 1.88/1.60 and a mopar cam 268/272 .450/.455. I'm concerned about port velocity with the larger valves 2.02/1.60 valves of the edelbrock heads, but the smaller combustion chamber and shape may be a benefit.