Yes, the OEMs will run 10 amps through 10 feet of 14 gauge wire for your head lights and you will get some voltage drop.
Running a fused wire straight off the battery or alt and slaving the old wiring to run a relay will brighten them up a lot.
(not a problem if you have LEDs)
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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