My first muscle car build thread (lots of pics)

good news everyone! well i made $50 bucks today helping my friend with a small engine repair. Its also going to snow a bunch so hopefully i can make a few bucks on driveways tomorrow! I did some math and it should be about 180-200 bucks for a gasket set, carb rebuild kit, oil, motor mounts and stuff. So so far so good! Im really hoping to have the money soon while i have the time.

What do you think my motor will make?
low miles 77 318 from a van or something
edelbrock ld4b intake manifold.
flowtech headers
340 cam
not sure what carb but probably a 600 cfm, my dads got a ton sitting in the corner im just going to grab the best candidate and do a rebuild.

I was thinking optimistically maybe 270 hp and 320tq at the flywheel.

I think im going to gasket match the intake but im not sure if i should port or not, or what to port.