by the way, Christmas gift idea for the muscle car person you are trying to get the right thing for... think about this, headlight upgrade without getting ugly new lights

the Hella H4, and a relay, and they will never have those dull yellow headlights anymore. A relay is needed to prevent problems when turning on the lights, as an instant 30 amp load is ruthless.

http://www.autohausaz.com/search/product.aspx?partnumber=UN6207155

These are incredible, fit some muscle cars (I put a pair in my last car, a 69 Super Bee) and don't look like the ugly weird lights blank check builds are getting.  You know, the ones you look at and wonder (what the eff were they thinking, those are hideous)