Hello Frank, I'm at the point that I'll only use the "red" rotors from Jeff at Advance Distributors, as well as his brass contact rotor caps. I got tired of guessing if my parts were good, even though new. I'd YMMV -- Best regards, Bill L. mailto:pythias at pacifier.com '66 Sprite MKIII HAN8L49403 "the red thing" Bad command or filename. Go stand in the corner.