Hey guys do any of you run the Bosch platinum +4 plugs? I have checked everywhere I can think to go and have come up empty. If so what plug is recommended for the 96 inch twin cam engine. Thanks for your help.

 

I doubt it makes a difference, just get the stock champion plugs, they are fine. To be honest, I don't believe those 4 points spark plugs being a mechanic for 20 some years, I had customer complain about gas mileage. Good luck!

 

Just stick with the stock plugs. If any of those rare metal/multi-electrode/magic bullet plugs did any good there would be lots of positive feedback here.

 

I tried em in my mustang and the electrodes get so hot that they cause pre-ignition. I went back to cheap coppers and couldn't be happier. Save your money.