Recommend carb for 5.7 350

[utee05]

Hi All,
I am currently looking for a new carb for my truck. I have a q-jet in mine but after taking my truck in for a some timing work and a vacuum leak my mechanic said my carb is bad. He said 2 of the valves are not opening up at all and it would not be wise to rebuild the carb.

This is the current carb that I am running (Q-jet 17081206 1171 DDJ)
Q-jet Carb

He recommend that I look for something with 500-600CFM.

Would something like this Holley work:
Holley 4160 Carb