Sounds like a good work build.
It could use more cam but if you already have a new stock one, you dont want too much cam for your use anyway so probably fine.
I think the lumps would help because they would help velocity and mixture quality for everyday, and add some power too without the lope or gas eating qualities of a big cam.
A 4bbl carb would help, better gas mileage than that big Holley 2bbl. A 500cfm Carterbrock would be about perfect, or a 390 Holley 4bbl or even a 4100 Autolite 4bbl, 440-500cfm.
Remember that 500cfm Holley is really only about 350cfm measured by the 4bbl method.
