Tire/wheel sizing

Does anyone have a chart or specs on maximum tire/wheel sizing for my 1979? I'm considering having my stock wheels redone but it might be fun to give it a new look altogether. The current wheels are the telephone dial type with 205/55/16. I don't want issues with rubbing but would like some beefier tires with a lower profile sidewall.

Andrew Olson has put together a spreadsheet fitment spreadsheet, you can find it here

Thanks Stan
what am I missing? When I click on the link it takes me to a gmail page??

I don't know, it takes me to a google docs page, where you can download the spreadsheet. I don't know why it would take you to a gmail page....

just tried it.....link no worky Stan

I've used Andrews spreadsheet afore...works from his sig line on RL

Looks like it worked for me... Says "Download" in the upper left hand corner... I didn't download it because I don't need it, but looked to be *working* anyway...