1) Don't sell the GT.
2) Get some drag radials.
3) Race him from a stand still. (you will have to learn how to launch the car some time
)
4) With the 4.10's, I wouldn't try to race him to 110+ mph. Keep it to your standard qt. mile, which for you would be around 99-101.
5) Let him spend $45K on an M3 while you put another $3K in a nice little blower - then you will destroy him. You have to remember that all of the mods you have done thus far will enhance the blower's effect on your car - except maybe for those 4.10's - ouch!
Good to hear that he was cool about the race. Don't get so down on you/your car. The M3's are are pretty quick. You're porbably running low 14's right now. I didn't read your previous posts, but I hope you weren't thinking that you were going to "kill" him - as stated above, a good driver can get one of those M3's into the 13.9's.
E