[CSGAS]

Don't go for platinum or high-dollar anything. I think you need real high combustion chamber temps or pressures, like LT1's or competition engines, to benefit from exotic metals.

Yes, AC Delco is good, so's Accel, Champion, etc.

I use Autolite 26's because I still get them for $1.39 each at NAPA.

I tried some Splitfires when they were on sale because I liked the old "V" plugs, they were good when you were not quite in your correct heat range and my truck (points dropped into the '76 engine) fit that description--what is being sold as Splitfires now, are not V-plugs, but really cheap copper plugs that do not seem to build enough heat to keep from carbon fouling.