My back half 1965 Dart that is certified to 7.50 ET has a tag on it that Forest installed after he finish the car, 1970 Cuda all tube chassis car I had him upgrade to meet 7.50 SFI specs doesn't, but it is at least 10 yrs old or older and was SFI certified to 6.00 before SFI change the rules on the funny car cages needed now for faster than 8.50.