Trying to find what is the resistance difference between aluminum and copper wiring when being used for household electricity. The original owner ran two 4 gauge aluminum wire from the meter to the fuse panel, about 100'. I know aluminum wire has a higher resistance than copper, but would it be enough of a resistance to be worth swapping out the aluminum wire for copper. A google search only turned up the differences for transmission lines, not household lines.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed