In terms of ride, handling performance and good period correct looks, with a modern radial design, your #1 choice is the Avon CR6ZZ 245 x 60 x VR15 fronts and CR6ZZ 295 x 50 VR15 rears. If you need a bigger footprint in the back to hold your power then you ought to look at the 325 x 50 R15 or the 275 x 60 R15 Nitto Extreme Drag Radials.
Here is an excellent tire size comparator that will allow you to A / B two different tire sizes, click here =>
Tire Size Comparator. You will find the
Second Strike Gearing Calculator (<=clickable) very helpful in matching final drive ratios, tire sizes and transmission overdrives.
BF Goodrich Radial T/A tires are an accident looking for a place to happen with your car. They should not be considered. The Cooper Cobra's ar very nice tires except for their raised white lettering. As nice as they are the Avons are nicer. A good admonition is not to skimp on tires. On these cars the quickest way to the cemetery is tires that are not up to the job.
When it comes to tires you get what you pay for. Avons are the priciest of the tire choices for the car — and they are the best for their size without going to race tires.
Ed