The few times I've ever been to a race where they actually did a thorough tech inspection, I've never had anyone actually look for the date on the SFI tag. They looked to see if it had an SFI balancer on the motor and that was it. No looking under the car except for checking to see if there was a driveshaft loop present.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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