1984 Oldsmobile Cutlass
new battery new alternator and still no power
Wiring man follow the wires see if any are messed up that or fuses are blown check those too if No power its most likely your battery terminal witres nothing to do with altenator if you have 0% power
Check for blown fuselinks, these are located down by the starter and are attached to the large terminal where the positive battery cable it attached. You may also want to check voltage drops across all main power supplies and grounding cables. Note: if the battery cables make a crunching sound when bent then just replace them as they have corrosion already inside them.
What he said it's gotta be terminals