Upgraded headlights

matthon said
H4s on one car with relays, excellent.

Sylvania somethings on another, terrible.

Wagners on my Valiant, pic below, awesome - but here's the catch, I put a ground hub next to the battery, pigtail from the neg battery cable to the hub. Ditched the headlight grounds to the body, ran new wire to the hub, they're effing bright as heck now.
Same with parking lights, tail lights, reverse lights, never had regular headlights so bright.

View attachment 1716445898

I am.not sure what year but factory did finally recognize the need and added a ground jumper from core support to batt' negative. Previously the chassis ground path was through a jumper from firewall to engine block. For my 67, all DIY. I purchased wire, terminals, wire loom, relays, 7" round H4s, all to have the desired wire length to place these relays where I wanted.