Will the centerline 15x8.5 auto drags with 4 7/8 backspacing work on all four corners of my 70? If they will, what tires would anyone recommend for said wheels? Thanks.

Yes, they will fit nicely. That backspacing is perfect to fit some big tires in there.

You've got lots of options on tire size with those wheels. How big do you want to go? It should handle up to a 295-50-15 on the rear. This would give you about a 12" section width, with 10" of tread width. For the front a 245-60 would be about the same height as the 295-50 with a tread width around 8.5".

------------------
Bob Von Kaenel
70 SS 54k orig miles
My car. (http://www.chevelles.com/showroom/barista70front.jpg)
The red interior. (http://www.chevelles.com/showroom/barista70interior2.jpg)
The engine. (http://www.chevelles.com/showroom/barista70engine.jpg)
Hood trim. (http://www.chevelles.com/showroom/baristasgirls.jpg)