i just purchased a 83 250r atc... actually just got it back from the shop getting some engine mod on it.. but the plug is stock was wondern if there is any other plug out there that would give it a lil better umph thanks

 

a buddie i was talking to told me to use a
NGK SPARK plug with penzoil for the motor.. he said thats what he used in his blaster an never had any foul trouble... was wandern if any body had a better idea or a previous experience..