I just read the post below mine about the cop that was not noticed. I remember that happening to me. I was heading home late one evening froma buddies house where we were working on his Triumph. It was a cool summer evening and the Z was running perfect. I had recently installed tripple mikuni's and a 4:11 limited slip diffy. I had gotten rid of carb bog by putting in a smaller choke size. Now when you hit the throttle it was instant! I was also running only the horns, no air cleaners. Very loud. Didn't have any cleaners anyway. I pull up to a main 4 way stopto turn left. About 5 seconds later a 77 or 78Z pulls up real fast to my right. I am first so I pull out and start to turn left. All of a sudden I could hear all this noise as the 280 pulls out full blast to try to beat me thru the intersection. Little do I know at the time a cop is sitting back aways at the corner in a school parking lot. When the 280 got next to me I said no way and nailed it, car went sideways, then grabbed second up to 6500 and hit 3rd. It was no contest. I looked in my mirror. Red and blue lights. Damn! I pulled over. It was a young cop on nite shift. He goes you were going pretty fast there. I needed to think quick. So I said did you see that guy try to cut me off? If is wasn't for evasive action by me there could have been a accident. (what a bunch of BS, I know) He seemed to by it. Then he says is this a Datsun? What do you have in there, its really fast. I said would you like to see? He goes, yes can I? He pulls out his flashlight and says holy $^!# when he sees the mikuni's. I told him this was a rare competition model. Ha! We talked about cars and then he says take it easy on the way home. Could not believe it, no ticket and no jail time! I used up all my luck on that one! I try to be more observent now.