Canadian built in Oshawa Ontario 1969 Call 519-999-2952 appraisal is at 40,000 motivated to sell owned car for 30 years. Big block 454 , 400 turbo 411 posi track 12 bolt rear yes it has a ticketed number cage that could be easily removed. $35,000
The sanctioning body (NHRA, IHRA etc) will sonic test your roll cage for thickness, inspect the construction and certify it to a certain ET (elapsed time).
Can't remember off hand but I think 10:99 was the starting point for a roll cage. Depending on how fast your car is there are
certain specs the cage must satisfy.
The certification is usually good for 2 or 3 years.
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......big block, 4 speed, bench seat, it doesn't get much better