certified roll cage

Well had NHRA tech guy look cage over and with 1 exception cage is fine.Everyone here may already know this, if you butt weld any bars on your cage you have to put a sleave at least 6" long inside. 2 1/2" on each side of weld you have to drill a 3/8 hole & weld it so you can see the sleave inside.weld around hole to weld bar to sleave, but not a plug weld, inspecter has to be able to see the sleave is long enough. Make sure all bars are fitted correctly an welded all the way around.