[Uncle Salty]

After 85mpg it started to ping, knock, and loose power.

85 MPG? Man, that thing is running awful lean. No wonder it started to ping.

I never used Drag Specialties spark plugs so I can't provide feedback on them. I've used Harley "rebranded Champion", NGK and Autolite without any issues.

 

[Uncle Salty]

One has an internal break.

What test did you perform to determine that one has an internal break?

 

[Uncle Salty]

Too much manure?

Hog chit.