how large a 14" tire/wheel may i put on my 1965 valiant?
Maybe a 14" by 6" wide wheel. Your stock tire size is 6.50-13 (I think) which converts to a 175/80-13. The nearest equivalent is probably a 185/70-14.
You could try going with a 195 or 205, 65 or 60 series tire. Trial fit to be sure you have clearance.
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