Mike Dees as well as several other guys like Big Daddy have the power (going 170+mph in the 1/4 as well) so once they find traction 7's on a DR will definitely happen
I saw Big Daddy in Dallas the weekend before last. Looks to me like he knows how to make the car leave. If I had to guess his 60' times were in the high 1.4's. His car really took off after the 60'. I think he ran 8.60's @162 all weekend.
I couldn't imagine a Supra running 8.20's on drag radials!!
He may have stepped it up recently, I dunno, but Big D usually runs 1.6's according to his posts and others that I have talked to. He likes easy launches and the top end charge.