Right on...I hear ya. That's some good trap speed for a high mileage engine. Yes, mine is a '90GT. I've got it down to around 3,000 pounds...maybe a little lighter. The scale at the local track seems to be off some lately. I rebuilt my motor about 4 years ago...but it only has around 20K on it now. I drove it on a daily basis only for the first 6 months. Now it's just on the weekends. If I could do it all over I would go with AFR heads and get the intake ported...and a better cam. I know there is better technology out there now than the alphabet cams...but my combo still does pretty good for what it is. I wished I wouldn't have skimped out and went ahead and got things ported during the rebuild...but you know how it goes. I had to draw the line somewhere in the $$$ department. The last couple of times I went to the track though...my trap speed was down 2 or 3mph. I don't know if it was the weather(some wind and humid one of the times), my slicks that are getting old, or my motor somehow getting a tad tired from the nitrous runs. But I've only ran like 3 or 4 bottles through the new motor...and it was built to handle the juice. Who knows. Happy draggin!