Running 14s is kinda tricky. The widest radial street tire made right now is the BFG Radial T/A in 245-60-14. Thatll put your max wheel size at about 14x8 unless you like the "stretched tire" look which isnt really for everybody. I recently switched to that set up on my car but I ran 14x10s for the longest time.
Now, if you really wanna put in some work and take a small risk (thats what I do), you can hit your local swap meets and look for old tires like the Mickeys and Remingtons and old BFGs, etc. I was running 14x10 slotted mags on the back of my old 440 Duster and also my soon to be 440 Demon until just recently. If your really carefull, you can have some pretty good luck. Im on my at least 9th pair of old tires and ive only been let down once. All the others lasted until they were totally bald. That being said, if I ever had to go some place far or if I was heading to my local Run-Whatchya-Brung, the 15s would go on for sure but other than that my 14s did just fine. Another plus, so few people run wide 14" tires that ive always gotten good deals. So thats my $.02 on the matter. In the last couple of weeks I sold off all my slotted mags and i actually have a pair of wide 14" tires left over. If you want them, you can have them for free, just pay for the ride. I dont recall the size off the top of my head but if youre interested ill go take a look and snap some pics for ya. Good Luck!
