70 dart 470 ci drag car build.

Yes, I measure and double check my tubing and sonic check it in various places along the length before I even started cutting the tubing up.
NHRA has changed several bars over the years for a 25.5 (7.50) cert. 3 of my buddies 7.50 re-certs failed due to these changes, but we built mine a little different and my OCD for having things a certain way allowed mine to pass all 3 times now.