Congrats to you and your son.
I know exactly how you feel, my son just won the points series at Norwalk for 8.90 jr dragster and is the season champion. He has been busting my butt about at-least getting a trophy this year, he has three event wins, one R/U, and a semi and he got a Wally this year to boot.
I've been lucky to make it a few rounds but I loved every minute of this year.

Tell him nice work!

Eric