I got a quick reply from a SCTA tech person, and as I suspected, the new "Drag slicks not allowed" rule change applies only to rear tires.
We used to run an 18" rear Goodyear square corner slick, but it had a good crown to it when pumped up to the maximum PSI....worked pretty good below 150 mph, but thin sidewall constuction became a concern. That new Metzler looks pretty square edged....bbb, I would send a picture to the SCTA tech people before showing up at a race with it. If it is designed for drag racing , you might get gonged. Better to be safe than sorry.