If you are looking to do a true "restoration", the correct routine is to return the car to as close to originally built as possible. If it was built with 14" wheels, you keep the 14" wheels.
I like the look of a wider wheel and tire though. These cars have the tires sucked in so much, they look like a big man with tiny feet when the stock 14" wheels are in place.
It isn't just the diameter, it is the wheel width that makes a difference. The 14" Rallye wheels are often 5 or 5 1/2" wide. To me, that is way too skinny. Today I pulled a set of 15 x 7 steel wheels from a Chrysler Fifth Avenue in a junkyard. $38 for 4 wheels, $20 for paint and I have the widest wheel they put on a regular production Mopar car.
I went with 18" wheels on my red car because I loved the style and wanted low profile tires for handling.
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I like the look of the NASCAR race cars where the tires are stuffed in.
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