Stop in for a cup of coffee

Anyone know if a 235 60 15 is going to look like a pizza cutter on the rear of a 67 B body? Trying to keep the tire diameter to 25.5" - 26". 2.94:1 gearing I think 27" - 28" would kill too much.
245 60/15 minimum. 275 60/15 if it will fit.

I have 245 60/15 on my GTS.

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