OK my stats are below, would it be my N47 head not flowing as good as the P90 would???
If I retard the dizzy I still get some knock, or tap, then If I retard it to the the point where it does not run as well I still get a little knock. The knock is at full throttle on the highway 4th and 5th gear, and I start to hear it at about 5000 rpm. Of coarse once it starts I get out of it kwick!
1st 2nd 3rd all can go to about 6000rpm and I never hear, the car is not all that loud so its not that I can't hear it, it just doesn't happen unless on the highway, could it be wanting more fuel?????????