I have run them in my 270 and my son's Stude V thing for at least 10 years and thousands of lonely highway miles. I have had one failure. I have on the other hand had a few Unilites and GM HEIs put me on the side of the road. I carry points in the glove box and a complete distributer under the seat with the .45. \:\) Beater

"I wonder if God created man because he was disappointed in the monkey?" Mark Twain