NHRA Welding rules??
I have seen some horrific welding that passes tech. As Tony has mentioned they don't look at the welds.
There is a guy at Barona, Chevy Hack...... He brags that he built his car all by himself. The whole front end clip was built by him, cage etc. I tell you what that car is some scary ****, total junk work.... Worst I have ever seen in my life. All of the welds look like Vulture ****. Cage is certed to 7.50 tagged and all.
It has a Twin Turbo SBC in it that runs like crap. I have never seen it make a clean pass. It does the same thing right out of the hole. Spit, pop , crack and engine breaks up every single time.