Can anyone tell me how much power this chevy 350 setup should be putting out?

HI i'm 16 and i'm planning on building a motor to put into my 1987 chevy k20. I want it to haul trailerloads of scrap metal and firewood and also want a little more get up and go to show off a bit around town. I have a 1977 chevy 350 motor. I'm planning to bore it 30 over and have the heads ported and polished. I also want to get one of those rebuild kits with the pistons and what not. Then i want to add an edelbrock performer intake and camshaft. Then use the rebuild qjet carburetor. Then headers and a dual glasspack exhaust. Can anyone tell me how much power this setup should be putting out? Also if i'm doing something wrong i would like to hear some suggestions thank you.