Sign Guy

When I picked up my 72 Scamp, I managed to swing a deal and pick up a full set of really nice Centerline wheels.

the front wheels had brand new P215 70 15's
the rear had 20.0/10.0 15's MT drag slicks. They had been on a Dart GT that had been used as a drag car. They will fit on the car, but of course the slicks are way too big.

I want a nice look with a forward rake, don't mind raising the back slightly.
Any suggestions on what size I should run? I could even swap the 215's to the rear, just wondering where to start.