I had fabulous success with the Denso iridiums when the Bosch plugs kept breaking up at high RPM. Try www.densoiridium.com for info. Expensive though at $12 each. Foe my application it was well worth it. Remember to use the correct heat range.
Best regards,
__________________
Gerry
84 911 Carrera (Supercharged), 67 427 Vette , 67 XK E-type Rdstr., 56 Vette
06 Cayenne Turbo S, 08 Vette Coupe, 57 Vette, 65 Chev Nova 327 4spd
65 Chev Nova 385 Race, 85 Chevy Rollback
97 Ford Exp. EB, 90, 91 Toy PU
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