SFI Question

YES, you can run an out of date belt in a slower car, not required to have a SFI belt in it.
I have 2 different letter's from NHRA direct ,both the NW division, and Glendora headquarters, as we went through this with Tammy's 11:90's Dart.
Some techs are confused about this question, I keep the letter in her car so when we go to other NHRA tracks.
You can email NHRA and they will verify this.Print the letter, and carry it with you.