i had a zex nitrous kit with the zex plugs installed on my 2000 gsr. i sold the kit and when i removed the plugs i noticed that they were really black and the white spot on the plugs had black spots on it. my friend told me that this is due to detonation. i currently replaced the plugs with iridiums. If detanation did occur... is my teggy going to be alright. the car seems to running good so far. it's not slower in any way. It just seems like my valves tap alot. any suggestions anybody??

 

Do a compression test to be sure.. then and only then can you rest.

 

what's the compression on the gsr??