I would go with a rpm air-gap intake which is better to higher rpms but also gives better low end torque than a performer (found out after i bought mine, so was kicking myself)
If you plan on ever taking the car to the strip i would suggest a holley 600 cfm or larger carb. Edelbrock only if it's gonna be a only street car. (personal opinion but holleys tend to be better for race applications)
Add a Msd 6 ignition and coil and you've got a hot cruiser.
'74 Gran Torino Project
351W, c6 trans, 9"