timing/ other sparky questions

building 360 sb. so far kb107's, 30 over, stock valve size, about 9.3:1 compression, comp 20-222-3 cam valvetrain kit, weiand dual plane intake, eddy performer 600 cfm

1.clueless where to start timing, i know what stock is but will my cam need different timing numbers? .462/.470 lift, 262/270 duration

2.what should i do with my distributer? what i mean is any advise on spring advance changes, or leave it all stock? plan on rebuilding it. where is the ideal place to hook up the vacum? (street)

3.has anybody ran the cheby type distributor with the hei coil on top? lookin at the 60 buck ones on ebay.

4.what about spark plugs? should i run stock what the auto zone guy finds or buy something "better" (obviously not the cheap cheap ones)

5.thanks for any help you can tell if im asking these questions im gettin close!!:burnout: