[DeTomaso] Sparkplugs

[Garth Rodericks]

Don't waste your money on fancy gimmick plugs with multiple electrodes, platinum, iridium, or other exotic sounding materials. And do NOT use Platinum plugs - they require much tighter control of air/fuel ratios only delivered by EFI.

Buy quality inexpensive Autolite plugs and replace them more often, and save money over the other 'name brand' plugs. Or, replace them at the same interval you would have replaced the overpriced big-name plugs and save even more!

Autolite AP24 or AP25 (Autolite catalog lists them both, one for the Boss 351 [351C] and the other for the 351C)

http://www.autolitecatalog.com/PartDetailWindow.aspx?b=A&pn=24
http://www.autolitecatalog.com/PartDetailWindow.aspx?b=A&pn=25

  Mail-in rebate on Autolite copper core spark plugs
  http://autolite.test.foresitetech.net/products/rebates_and_special_offers/?pid=428

MotorcraftAF-32 (probably best heat range for street)
http://www.fordparts.com/Commerce/PartDetail.aspx?n=00kz50mQDnNQ0XPLPoGRlw%3d%3d&id=190159863&m=2&search=true&year=1971&make=Ford&model=Mustang

Motorcroft ASF-42C
http://www.fordparts.com/Commerce/PartDetail.aspx?n=FvxVMnnapVrr8QlyvqPYNA%3d%3d&id=190505731&m=2&search=true&year=1971&make=Ford&model=Mustang

AC Delco ASM 41-803 or CR43-TS


NGK UR4
http://www.ngksparkplugs.com/products/spark_plugs/vpower.asp