It was certified in 1996 it looks like. I'm not sure how the rules work, but the machine shop that built the 440 he was trying to use said he was trying to build a "hobby racer" / just something that would get him down the track again.
So, I don't know if he'd be allowed to take it down the track just for kicks, knowing that he'd not be able to compete in it. I'm not sure if that's allowed, or if the certs are strictly to allow one to compete.